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- How to Write a Literature Review | Guide, Examples, & Templates
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How to Write a Literature Review | Guide, Examples, & Templates
Published on January 2, 2023 by Shona McCombes . Revised on September 11, 2023.
What is a literature review? A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods, and gaps in the existing research that you can later apply to your paper, thesis, or dissertation topic .
There are five key steps to writing a literature review:
- Search for relevant literature
- Evaluate sources
- Identify themes, debates, and gaps
- Outline the structure
- Write your literature review
A good literature review doesn’t just summarize sources—it analyzes, synthesizes , and critically evaluates to give a clear picture of the state of knowledge on the subject.
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Table of contents
What is the purpose of a literature review, examples of literature reviews, step 1 – search for relevant literature, step 2 – evaluate and select sources, step 3 – identify themes, debates, and gaps, step 4 – outline your literature review’s structure, step 5 – write your literature review, free lecture slides, other interesting articles, frequently asked questions, introduction.
- Quick Run-through
- Step 1 & 2
When you write a thesis , dissertation , or research paper , you will likely have to conduct a literature review to situate your research within existing knowledge. The literature review gives you a chance to:
- Demonstrate your familiarity with the topic and its scholarly context
- Develop a theoretical framework and methodology for your research
- Position your work in relation to other researchers and theorists
- Show how your research addresses a gap or contributes to a debate
- Evaluate the current state of research and demonstrate your knowledge of the scholarly debates around your topic.
Writing literature reviews is a particularly important skill if you want to apply for graduate school or pursue a career in research. We’ve written a step-by-step guide that you can follow below.
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Writing literature reviews can be quite challenging! A good starting point could be to look at some examples, depending on what kind of literature review you’d like to write.
- Example literature review #1: “Why Do People Migrate? A Review of the Theoretical Literature” ( Theoretical literature review about the development of economic migration theory from the 1950s to today.)
- Example literature review #2: “Literature review as a research methodology: An overview and guidelines” ( Methodological literature review about interdisciplinary knowledge acquisition and production.)
- Example literature review #3: “The Use of Technology in English Language Learning: A Literature Review” ( Thematic literature review about the effects of technology on language acquisition.)
- Example literature review #4: “Learners’ Listening Comprehension Difficulties in English Language Learning: A Literature Review” ( Chronological literature review about how the concept of listening skills has changed over time.)
You can also check out our templates with literature review examples and sample outlines at the links below.
Download Word doc Download Google doc
Before you begin searching for literature, you need a clearly defined topic .
If you are writing the literature review section of a dissertation or research paper, you will search for literature related to your research problem and questions .
Make a list of keywords
Start by creating a list of keywords related to your research question. Include each of the key concepts or variables you’re interested in, and list any synonyms and related terms. You can add to this list as you discover new keywords in the process of your literature search.
- Social media, Facebook, Instagram, Twitter, Snapchat, TikTok
- Body image, self-perception, self-esteem, mental health
- Generation Z, teenagers, adolescents, youth
Search for relevant sources
Use your keywords to begin searching for sources. Some useful databases to search for journals and articles include:
- Your university’s library catalogue
- Google Scholar
- Project Muse (humanities and social sciences)
- Medline (life sciences and biomedicine)
- EconLit (economics)
- Inspec (physics, engineering and computer science)
You can also use boolean operators to help narrow down your search.
Make sure to read the abstract to find out whether an article is relevant to your question. When you find a useful book or article, you can check the bibliography to find other relevant sources.
You likely won’t be able to read absolutely everything that has been written on your topic, so it will be necessary to evaluate which sources are most relevant to your research question.
For each publication, ask yourself:
- What question or problem is the author addressing?
- What are the key concepts and how are they defined?
- What are the key theories, models, and methods?
- Does the research use established frameworks or take an innovative approach?
- What are the results and conclusions of the study?
- How does the publication relate to other literature in the field? Does it confirm, add to, or challenge established knowledge?
- What are the strengths and weaknesses of the research?
Make sure the sources you use are credible , and make sure you read any landmark studies and major theories in your field of research.
You can use our template to summarize and evaluate sources you’re thinking about using. Click on either button below to download.
Take notes and cite your sources
As you read, you should also begin the writing process. Take notes that you can later incorporate into the text of your literature review.
It is important to keep track of your sources with citations to avoid plagiarism . It can be helpful to make an annotated bibliography , where you compile full citation information and write a paragraph of summary and analysis for each source. This helps you remember what you read and saves time later in the process.
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To begin organizing your literature review’s argument and structure, be sure you understand the connections and relationships between the sources you’ve read. Based on your reading and notes, you can look for:
- Trends and patterns (in theory, method or results): do certain approaches become more or less popular over time?
- Themes: what questions or concepts recur across the literature?
- Debates, conflicts and contradictions: where do sources disagree?
- Pivotal publications: are there any influential theories or studies that changed the direction of the field?
- Gaps: what is missing from the literature? Are there weaknesses that need to be addressed?
This step will help you work out the structure of your literature review and (if applicable) show how your own research will contribute to existing knowledge.
- Most research has focused on young women.
- There is an increasing interest in the visual aspects of social media.
- But there is still a lack of robust research on highly visual platforms like Instagram and Snapchat—this is a gap that you could address in your own research.
There are various approaches to organizing the body of a literature review. Depending on the length of your literature review, you can combine several of these strategies (for example, your overall structure might be thematic, but each theme is discussed chronologically).
Chronological
The simplest approach is to trace the development of the topic over time. However, if you choose this strategy, be careful to avoid simply listing and summarizing sources in order.
Try to analyze patterns, turning points and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred.
If you have found some recurring central themes, you can organize your literature review into subsections that address different aspects of the topic.
For example, if you are reviewing literature about inequalities in migrant health outcomes, key themes might include healthcare policy, language barriers, cultural attitudes, legal status, and economic access.
Methodological
If you draw your sources from different disciplines or fields that use a variety of research methods , you might want to compare the results and conclusions that emerge from different approaches. For example:
- Look at what results have emerged in qualitative versus quantitative research
- Discuss how the topic has been approached by empirical versus theoretical scholarship
- Divide the literature into sociological, historical, and cultural sources
Theoretical
A literature review is often the foundation for a theoretical framework . You can use it to discuss various theories, models, and definitions of key concepts.
You might argue for the relevance of a specific theoretical approach, or combine various theoretical concepts to create a framework for your research.
Like any other academic text , your literature review should have an introduction , a main body, and a conclusion . What you include in each depends on the objective of your literature review.
The introduction should clearly establish the focus and purpose of the literature review.
Depending on the length of your literature review, you might want to divide the body into subsections. You can use a subheading for each theme, time period, or methodological approach.
As you write, you can follow these tips:
- Summarize and synthesize: give an overview of the main points of each source and combine them into a coherent whole
- Analyze and interpret: don’t just paraphrase other researchers — add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
- Critically evaluate: mention the strengths and weaknesses of your sources
- Write in well-structured paragraphs: use transition words and topic sentences to draw connections, comparisons and contrasts
In the conclusion, you should summarize the key findings you have taken from the literature and emphasize their significance.
When you’ve finished writing and revising your literature review, don’t forget to proofread thoroughly before submitting. Not a language expert? Check out Scribbr’s professional proofreading services !
This article has been adapted into lecture slides that you can use to teach your students about writing a literature review.
Scribbr slides are free to use, customize, and distribute for educational purposes.
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If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.
- Sampling methods
- Simple random sampling
- Stratified sampling
- Cluster sampling
- Likert scales
- Reproducibility
Statistics
- Null hypothesis
- Statistical power
- Probability distribution
- Effect size
- Poisson distribution
Research bias
- Optimism bias
- Cognitive bias
- Implicit bias
- Hawthorne effect
- Anchoring bias
- Explicit bias
A literature review is a survey of scholarly sources (such as books, journal articles, and theses) related to a specific topic or research question .
It is often written as part of a thesis, dissertation , or research paper , in order to situate your work in relation to existing knowledge.
There are several reasons to conduct a literature review at the beginning of a research project:
- To familiarize yourself with the current state of knowledge on your topic
- To ensure that you’re not just repeating what others have already done
- To identify gaps in knowledge and unresolved problems that your research can address
- To develop your theoretical framework and methodology
- To provide an overview of the key findings and debates on the topic
Writing the literature review shows your reader how your work relates to existing research and what new insights it will contribute.
The literature review usually comes near the beginning of your thesis or dissertation . After the introduction , it grounds your research in a scholarly field and leads directly to your theoretical framework or methodology .
A literature review is a survey of credible sources on a topic, often used in dissertations , theses, and research papers . Literature reviews give an overview of knowledge on a subject, helping you identify relevant theories and methods, as well as gaps in existing research. Literature reviews are set up similarly to other academic texts , with an introduction , a main body, and a conclusion .
An annotated bibliography is a list of source references that has a short description (called an annotation ) for each of the sources. It is often assigned as part of the research process for a paper .
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Writing a Literature Review
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A literature review is a document or section of a document that collects key sources on a topic and discusses those sources in conversation with each other (also called synthesis ). The lit review is an important genre in many disciplines, not just literature (i.e., the study of works of literature such as novels and plays). When we say “literature review” or refer to “the literature,” we are talking about the research ( scholarship ) in a given field. You will often see the terms “the research,” “the scholarship,” and “the literature” used mostly interchangeably.
Where, when, and why would I write a lit review?
There are a number of different situations where you might write a literature review, each with slightly different expectations; different disciplines, too, have field-specific expectations for what a literature review is and does. For instance, in the humanities, authors might include more overt argumentation and interpretation of source material in their literature reviews, whereas in the sciences, authors are more likely to report study designs and results in their literature reviews; these differences reflect these disciplines’ purposes and conventions in scholarship. You should always look at examples from your own discipline and talk to professors or mentors in your field to be sure you understand your discipline’s conventions, for literature reviews as well as for any other genre.
A literature review can be a part of a research paper or scholarly article, usually falling after the introduction and before the research methods sections. In these cases, the lit review just needs to cover scholarship that is important to the issue you are writing about; sometimes it will also cover key sources that informed your research methodology.
Lit reviews can also be standalone pieces, either as assignments in a class or as publications. In a class, a lit review may be assigned to help students familiarize themselves with a topic and with scholarship in their field, get an idea of the other researchers working on the topic they’re interested in, find gaps in existing research in order to propose new projects, and/or develop a theoretical framework and methodology for later research. As a publication, a lit review usually is meant to help make other scholars’ lives easier by collecting and summarizing, synthesizing, and analyzing existing research on a topic. This can be especially helpful for students or scholars getting into a new research area, or for directing an entire community of scholars toward questions that have not yet been answered.
What are the parts of a lit review?
Most lit reviews use a basic introduction-body-conclusion structure; if your lit review is part of a larger paper, the introduction and conclusion pieces may be just a few sentences while you focus most of your attention on the body. If your lit review is a standalone piece, the introduction and conclusion take up more space and give you a place to discuss your goals, research methods, and conclusions separately from where you discuss the literature itself.
Introduction:
- An introductory paragraph that explains what your working topic and thesis is
- A forecast of key topics or texts that will appear in the review
- Potentially, a description of how you found sources and how you analyzed them for inclusion and discussion in the review (more often found in published, standalone literature reviews than in lit review sections in an article or research paper)
- Summarize and synthesize: Give an overview of the main points of each source and combine them into a coherent whole
- Analyze and interpret: Don’t just paraphrase other researchers – add your own interpretations where possible, discussing the significance of findings in relation to the literature as a whole
- Critically Evaluate: Mention the strengths and weaknesses of your sources
- Write in well-structured paragraphs: Use transition words and topic sentence to draw connections, comparisons, and contrasts.
Conclusion:
- Summarize the key findings you have taken from the literature and emphasize their significance
- Connect it back to your primary research question
How should I organize my lit review?
Lit reviews can take many different organizational patterns depending on what you are trying to accomplish with the review. Here are some examples:
- Chronological : The simplest approach is to trace the development of the topic over time, which helps familiarize the audience with the topic (for instance if you are introducing something that is not commonly known in your field). If you choose this strategy, be careful to avoid simply listing and summarizing sources in order. Try to analyze the patterns, turning points, and key debates that have shaped the direction of the field. Give your interpretation of how and why certain developments occurred (as mentioned previously, this may not be appropriate in your discipline — check with a teacher or mentor if you’re unsure).
- Thematic : If you have found some recurring central themes that you will continue working with throughout your piece, you can organize your literature review into subsections that address different aspects of the topic. For example, if you are reviewing literature about women and religion, key themes can include the role of women in churches and the religious attitude towards women.
- Qualitative versus quantitative research
- Empirical versus theoretical scholarship
- Divide the research by sociological, historical, or cultural sources
- Theoretical : In many humanities articles, the literature review is the foundation for the theoretical framework. You can use it to discuss various theories, models, and definitions of key concepts. You can argue for the relevance of a specific theoretical approach or combine various theorical concepts to create a framework for your research.
What are some strategies or tips I can use while writing my lit review?
Any lit review is only as good as the research it discusses; make sure your sources are well-chosen and your research is thorough. Don’t be afraid to do more research if you discover a new thread as you’re writing. More info on the research process is available in our "Conducting Research" resources .
As you’re doing your research, create an annotated bibliography ( see our page on the this type of document ). Much of the information used in an annotated bibliography can be used also in a literature review, so you’ll be not only partially drafting your lit review as you research, but also developing your sense of the larger conversation going on among scholars, professionals, and any other stakeholders in your topic.
Usually you will need to synthesize research rather than just summarizing it. This means drawing connections between sources to create a picture of the scholarly conversation on a topic over time. Many student writers struggle to synthesize because they feel they don’t have anything to add to the scholars they are citing; here are some strategies to help you:
- It often helps to remember that the point of these kinds of syntheses is to show your readers how you understand your research, to help them read the rest of your paper.
- Writing teachers often say synthesis is like hosting a dinner party: imagine all your sources are together in a room, discussing your topic. What are they saying to each other?
- Look at the in-text citations in each paragraph. Are you citing just one source for each paragraph? This usually indicates summary only. When you have multiple sources cited in a paragraph, you are more likely to be synthesizing them (not always, but often
- Read more about synthesis here.
The most interesting literature reviews are often written as arguments (again, as mentioned at the beginning of the page, this is discipline-specific and doesn’t work for all situations). Often, the literature review is where you can establish your research as filling a particular gap or as relevant in a particular way. You have some chance to do this in your introduction in an article, but the literature review section gives a more extended opportunity to establish the conversation in the way you would like your readers to see it. You can choose the intellectual lineage you would like to be part of and whose definitions matter most to your thinking (mostly humanities-specific, but this goes for sciences as well). In addressing these points, you argue for your place in the conversation, which tends to make the lit review more compelling than a simple reporting of other sources.
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What is a Literature Review? How to Write It (with Examples)
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A literature review is a critical analysis and synthesis of existing research on a particular topic. It provides an overview of the current state of knowledge, identifies gaps, and highlights key findings in the literature. 1 The purpose of a literature review is to situate your own research within the context of existing scholarship, demonstrating your understanding of the topic and showing how your work contributes to the ongoing conversation in the field. Learning how to write a literature review is a critical tool for successful research. Your ability to summarize and synthesize prior research pertaining to a certain topic demonstrates your grasp on the topic of study, and assists in the learning process.
Table of Contents
- What is the purpose of literature review?
- a. Habitat Loss and Species Extinction:
- b. Range Shifts and Phenological Changes:
- c. Ocean Acidification and Coral Reefs:
- d. Adaptive Strategies and Conservation Efforts:
How to write a good literature review
- Choose a Topic and Define the Research Question:
- Decide on the Scope of Your Review:
- Select Databases for Searches:
- Conduct Searches and Keep Track:
- Review the Literature:
- Organize and Write Your Literature Review:
- How to write a literature review faster with Paperpal?
- Frequently asked questions
What is a literature review?
A well-conducted literature review demonstrates the researcher’s familiarity with the existing literature, establishes the context for their own research, and contributes to scholarly conversations on the topic. One of the purposes of a literature review is also to help researchers avoid duplicating previous work and ensure that their research is informed by and builds upon the existing body of knowledge.
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What is the purpose of literature review?
A literature review serves several important purposes within academic and research contexts. Here are some key objectives and functions of a literature review: 2
1. Contextualizing the Research Problem: The literature review provides a background and context for the research problem under investigation. It helps to situate the study within the existing body of knowledge.
2. Identifying Gaps in Knowledge: By identifying gaps, contradictions, or areas requiring further research, the researcher can shape the research question and justify the significance of the study. This is crucial for ensuring that the new research contributes something novel to the field.
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3. Understanding Theoretical and Conceptual Frameworks: Literature reviews help researchers gain an understanding of the theoretical and conceptual frameworks used in previous studies. This aids in the development of a theoretical framework for the current research.
4. Providing Methodological Insights: Another purpose of literature reviews is that it allows researchers to learn about the methodologies employed in previous studies. This can help in choosing appropriate research methods for the current study and avoiding pitfalls that others may have encountered.
5. Establishing Credibility: A well-conducted literature review demonstrates the researcher’s familiarity with existing scholarship, establishing their credibility and expertise in the field. It also helps in building a solid foundation for the new research.
6. Informing Hypotheses or Research Questions: The literature review guides the formulation of hypotheses or research questions by highlighting relevant findings and areas of uncertainty in existing literature.
Literature review example
Let’s delve deeper with a literature review example: Let’s say your literature review is about the impact of climate change on biodiversity. You might format your literature review into sections such as the effects of climate change on habitat loss and species extinction, phenological changes, and marine biodiversity. Each section would then summarize and analyze relevant studies in those areas, highlighting key findings and identifying gaps in the research. The review would conclude by emphasizing the need for further research on specific aspects of the relationship between climate change and biodiversity. The following literature review template provides a glimpse into the recommended literature review structure and content, demonstrating how research findings are organized around specific themes within a broader topic.
Literature Review on Climate Change Impacts on Biodiversity:
Climate change is a global phenomenon with far-reaching consequences, including significant impacts on biodiversity. This literature review synthesizes key findings from various studies:
a. Habitat Loss and Species Extinction:
Climate change-induced alterations in temperature and precipitation patterns contribute to habitat loss, affecting numerous species (Thomas et al., 2004). The review discusses how these changes increase the risk of extinction, particularly for species with specific habitat requirements.
b. Range Shifts and Phenological Changes:
Observations of range shifts and changes in the timing of biological events (phenology) are documented in response to changing climatic conditions (Parmesan & Yohe, 2003). These shifts affect ecosystems and may lead to mismatches between species and their resources.
c. Ocean Acidification and Coral Reefs:
The review explores the impact of climate change on marine biodiversity, emphasizing ocean acidification’s threat to coral reefs (Hoegh-Guldberg et al., 2007). Changes in pH levels negatively affect coral calcification, disrupting the delicate balance of marine ecosystems.
d. Adaptive Strategies and Conservation Efforts:
Recognizing the urgency of the situation, the literature review discusses various adaptive strategies adopted by species and conservation efforts aimed at mitigating the impacts of climate change on biodiversity (Hannah et al., 2007). It emphasizes the importance of interdisciplinary approaches for effective conservation planning.
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Writing a literature review involves summarizing and synthesizing existing research on a particular topic. A good literature review format should include the following elements.
Introduction: The introduction sets the stage for your literature review, providing context and introducing the main focus of your review.
- Opening Statement: Begin with a general statement about the broader topic and its significance in the field.
- Scope and Purpose: Clearly define the scope of your literature review. Explain the specific research question or objective you aim to address.
- Organizational Framework: Briefly outline the structure of your literature review, indicating how you will categorize and discuss the existing research.
- Significance of the Study: Highlight why your literature review is important and how it contributes to the understanding of the chosen topic.
- Thesis Statement: Conclude the introduction with a concise thesis statement that outlines the main argument or perspective you will develop in the body of the literature review.
Body: The body of the literature review is where you provide a comprehensive analysis of existing literature, grouping studies based on themes, methodologies, or other relevant criteria.
- Organize by Theme or Concept: Group studies that share common themes, concepts, or methodologies. Discuss each theme or concept in detail, summarizing key findings and identifying gaps or areas of disagreement.
- Critical Analysis: Evaluate the strengths and weaknesses of each study. Discuss the methodologies used, the quality of evidence, and the overall contribution of each work to the understanding of the topic.
- Synthesis of Findings: Synthesize the information from different studies to highlight trends, patterns, or areas of consensus in the literature.
- Identification of Gaps: Discuss any gaps or limitations in the existing research and explain how your review contributes to filling these gaps.
- Transition between Sections: Provide smooth transitions between different themes or concepts to maintain the flow of your literature review.
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Conclusion: The conclusion of your literature review should summarize the main findings, highlight the contributions of the review, and suggest avenues for future research.
- Summary of Key Findings: Recap the main findings from the literature and restate how they contribute to your research question or objective.
- Contributions to the Field: Discuss the overall contribution of your literature review to the existing knowledge in the field.
- Implications and Applications: Explore the practical implications of the findings and suggest how they might impact future research or practice.
- Recommendations for Future Research: Identify areas that require further investigation and propose potential directions for future research in the field.
- Final Thoughts: Conclude with a final reflection on the importance of your literature review and its relevance to the broader academic community.
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Conducting a literature review
Conducting a literature review is an essential step in research that involves reviewing and analyzing existing literature on a specific topic. It’s important to know how to do a literature review effectively, so here are the steps to follow: 1
Choose a Topic and Define the Research Question:
- Select a topic that is relevant to your field of study.
- Clearly define your research question or objective. Determine what specific aspect of the topic do you want to explore?
Decide on the Scope of Your Review:
- Determine the timeframe for your literature review. Are you focusing on recent developments, or do you want a historical overview?
- Consider the geographical scope. Is your review global, or are you focusing on a specific region?
- Define the inclusion and exclusion criteria. What types of sources will you include? Are there specific types of studies or publications you will exclude?
Select Databases for Searches:
- Identify relevant databases for your field. Examples include PubMed, IEEE Xplore, Scopus, Web of Science, and Google Scholar.
- Consider searching in library catalogs, institutional repositories, and specialized databases related to your topic.
Conduct Searches and Keep Track:
- Develop a systematic search strategy using keywords, Boolean operators (AND, OR, NOT), and other search techniques.
- Record and document your search strategy for transparency and replicability.
- Keep track of the articles, including publication details, abstracts, and links. Use citation management tools like EndNote, Zotero, or Mendeley to organize your references.
Review the Literature:
- Evaluate the relevance and quality of each source. Consider the methodology, sample size, and results of studies.
- Organize the literature by themes or key concepts. Identify patterns, trends, and gaps in the existing research.
- Summarize key findings and arguments from each source. Compare and contrast different perspectives.
- Identify areas where there is a consensus in the literature and where there are conflicting opinions.
- Provide critical analysis and synthesis of the literature. What are the strengths and weaknesses of existing research?
Organize and Write Your Literature Review:
- Literature review outline should be based on themes, chronological order, or methodological approaches.
- Write a clear and coherent narrative that synthesizes the information gathered.
- Use proper citations for each source and ensure consistency in your citation style (APA, MLA, Chicago, etc.).
- Conclude your literature review by summarizing key findings, identifying gaps, and suggesting areas for future research.
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How to write a literature review faster with Paperpal?
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Here’s how to use the Research feature:
- Ask a question: Get started with a new document on paperpal.com. Click on the “Research” feature and type your question in plain English. Paperpal will scour over 250 million research articles, including conference papers and preprints, to provide you with accurate insights and citations.
- Review and Save: Paperpal summarizes the information, while citing sources and listing relevant reads. You can quickly scan the results to identify relevant references and save these directly to your built-in citations library for later access.
- Cite with Confidence: Paperpal makes it easy to incorporate relevant citations and references into your writing, ensuring your arguments are well-supported by credible sources. This translates to a polished, well-researched literature review.
The literature review sample and detailed advice on writing and conducting a review will help you produce a well-structured report. But remember that a good literature review is an ongoing process, and it may be necessary to revisit and update it as your research progresses. By combining effortless research with an easy citation process, Paperpal Research streamlines the literature review process and empowers you to write faster and with more confidence. Try Paperpal Research now and see for yourself.
Frequently asked questions
A literature review is a critical and comprehensive analysis of existing literature (published and unpublished works) on a specific topic or research question and provides a synthesis of the current state of knowledge in a particular field. A well-conducted literature review is crucial for researchers to build upon existing knowledge, avoid duplication of efforts, and contribute to the advancement of their field. It also helps researchers situate their work within a broader context and facilitates the development of a sound theoretical and conceptual framework for their studies.
Literature review is a crucial component of research writing, providing a solid background for a research paper’s investigation. The aim is to keep professionals up to date by providing an understanding of ongoing developments within a specific field, including research methods, and experimental techniques used in that field, and present that knowledge in the form of a written report. Also, the depth and breadth of the literature review emphasizes the credibility of the scholar in his or her field.
Before writing a literature review, it’s essential to undertake several preparatory steps to ensure that your review is well-researched, organized, and focused. This includes choosing a topic of general interest to you and doing exploratory research on that topic, writing an annotated bibliography, and noting major points, especially those that relate to the position you have taken on the topic.
Literature reviews and academic research papers are essential components of scholarly work but serve different purposes within the academic realm. 3 A literature review aims to provide a foundation for understanding the current state of research on a particular topic, identify gaps or controversies, and lay the groundwork for future research. Therefore, it draws heavily from existing academic sources, including books, journal articles, and other scholarly publications. In contrast, an academic research paper aims to present new knowledge, contribute to the academic discourse, and advance the understanding of a specific research question. Therefore, it involves a mix of existing literature (in the introduction and literature review sections) and original data or findings obtained through research methods.
Literature reviews are essential components of academic and research papers, and various strategies can be employed to conduct them effectively. If you want to know how to write a literature review for a research paper, here are four common approaches that are often used by researchers. Chronological Review: This strategy involves organizing the literature based on the chronological order of publication. It helps to trace the development of a topic over time, showing how ideas, theories, and research have evolved. Thematic Review: Thematic reviews focus on identifying and analyzing themes or topics that cut across different studies. Instead of organizing the literature chronologically, it is grouped by key themes or concepts, allowing for a comprehensive exploration of various aspects of the topic. Methodological Review: This strategy involves organizing the literature based on the research methods employed in different studies. It helps to highlight the strengths and weaknesses of various methodologies and allows the reader to evaluate the reliability and validity of the research findings. Theoretical Review: A theoretical review examines the literature based on the theoretical frameworks used in different studies. This approach helps to identify the key theories that have been applied to the topic and assess their contributions to the understanding of the subject. It’s important to note that these strategies are not mutually exclusive, and a literature review may combine elements of more than one approach. The choice of strategy depends on the research question, the nature of the literature available, and the goals of the review. Additionally, other strategies, such as integrative reviews or systematic reviews, may be employed depending on the specific requirements of the research.
The literature review format can vary depending on the specific publication guidelines. However, there are some common elements and structures that are often followed. Here is a general guideline for the format of a literature review: Introduction: Provide an overview of the topic. Define the scope and purpose of the literature review. State the research question or objective. Body: Organize the literature by themes, concepts, or chronology. Critically analyze and evaluate each source. Discuss the strengths and weaknesses of the studies. Highlight any methodological limitations or biases. Identify patterns, connections, or contradictions in the existing research. Conclusion: Summarize the key points discussed in the literature review. Highlight the research gap. Address the research question or objective stated in the introduction. Highlight the contributions of the review and suggest directions for future research.
Both annotated bibliographies and literature reviews involve the examination of scholarly sources. While annotated bibliographies focus on individual sources with brief annotations, literature reviews provide a more in-depth, integrated, and comprehensive analysis of existing literature on a specific topic. The key differences are as follows:
Annotated Bibliography | Literature Review | |
Purpose | List of citations of books, articles, and other sources with a brief description (annotation) of each source. | Comprehensive and critical analysis of existing literature on a specific topic. |
Focus | Summary and evaluation of each source, including its relevance, methodology, and key findings. | Provides an overview of the current state of knowledge on a particular subject and identifies gaps, trends, and patterns in existing literature. |
Structure | Each citation is followed by a concise paragraph (annotation) that describes the source’s content, methodology, and its contribution to the topic. | The literature review is organized thematically or chronologically and involves a synthesis of the findings from different sources to build a narrative or argument. |
Length | Typically 100-200 words | Length of literature review ranges from a few pages to several chapters |
Independence | Each source is treated separately, with less emphasis on synthesizing the information across sources. | The writer synthesizes information from multiple sources to present a cohesive overview of the topic. |
References
- Denney, A. S., & Tewksbury, R. (2013). How to write a literature review. Journal of criminal justice education , 24 (2), 218-234.
- Pan, M. L. (2016). Preparing literature reviews: Qualitative and quantitative approaches . Taylor & Francis.
- Cantero, C. (2019). How to write a literature review. San José State University Writing Center .
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How To Write A Literature Review - A Complete Guide
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Table of Contents
A literature review is much more than just another section in your research paper. It forms the very foundation of your research. It is a formal piece of writing where you analyze the existing theoretical framework, principles, and assumptions and use that as a base to shape your approach to the research question.
Curating and drafting a solid literature review section not only lends more credibility to your research paper but also makes your research tighter and better focused. But, writing literature reviews is a difficult task. It requires extensive reading, plus you have to consider market trends and technological and political changes, which tend to change in the blink of an eye.
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In this comprehensive guide, we will explore everything from the definition of a literature review, its appropriate length, various types of literature reviews, and how to write one.
What is a literature review?
A literature review is a collation of survey, research, critical evaluation, and assessment of the existing literature in a preferred domain.
Eminent researcher and academic Arlene Fink, in her book Conducting Research Literature Reviews , defines it as the following:
“A literature review surveys books, scholarly articles, and any other sources relevant to a particular issue, area of research, or theory, and by so doing, provides a description, summary, and critical evaluation of these works in relation to the research problem being investigated.
Literature reviews are designed to provide an overview of sources you have explored while researching a particular topic, and to demonstrate to your readers how your research fits within a larger field of study.”
Simply put, a literature review can be defined as a critical discussion of relevant pre-existing research around your research question and carving out a definitive place for your study in the existing body of knowledge. Literature reviews can be presented in multiple ways: a section of an article, the whole research paper itself, or a chapter of your thesis.
![where do you put a literature review in a research paper A literature review paper](https://typeset.io/resources/content/images/2023/06/Literature-review.png)
A literature review does function as a summary of sources, but it also allows you to analyze further, interpret, and examine the stated theories, methods, viewpoints, and, of course, the gaps in the existing content.
As an author, you can discuss and interpret the research question and its various aspects and debate your adopted methods to support the claim.
What is the purpose of a literature review?
A literature review is meant to help your readers understand the relevance of your research question and where it fits within the existing body of knowledge. As a researcher, you should use it to set the context, build your argument, and establish the need for your study.
What is the importance of a literature review?
The literature review is a critical part of research papers because it helps you:
- Gain an in-depth understanding of your research question and the surrounding area
- Convey that you have a thorough understanding of your research area and are up-to-date with the latest changes and advancements
- Establish how your research is connected or builds on the existing body of knowledge and how it could contribute to further research
- Elaborate on the validity and suitability of your theoretical framework and research methodology
- Identify and highlight gaps and shortcomings in the existing body of knowledge and how things need to change
- Convey to readers how your study is different or how it contributes to the research area
How long should a literature review be?
Ideally, the literature review should take up 15%-40% of the total length of your manuscript. So, if you have a 10,000-word research paper, the minimum word count could be 1500.
Your literature review format depends heavily on the kind of manuscript you are writing — an entire chapter in case of doctoral theses, a part of the introductory section in a research article, to a full-fledged review article that examines the previously published research on a topic.
Another determining factor is the type of research you are doing. The literature review section tends to be longer for secondary research projects than primary research projects.
What are the different types of literature reviews?
All literature reviews are not the same. There are a variety of possible approaches that you can take. It all depends on the type of research you are pursuing.
Here are the different types of literature reviews:
Argumentative review
It is called an argumentative review when you carefully present literature that only supports or counters a specific argument or premise to establish a viewpoint.
Integrative review
It is a type of literature review focused on building a comprehensive understanding of a topic by combining available theoretical frameworks and empirical evidence.
Methodological review
This approach delves into the ''how'' and the ''what" of the research question — you cannot look at the outcome in isolation; you should also review the methodology used.
Systematic review
This form consists of an overview of existing evidence pertinent to a clearly formulated research question, which uses pre-specified and standardized methods to identify and critically appraise relevant research and collect, report, and analyze data from the studies included in the review.
Meta-analysis review
Meta-analysis uses statistical methods to summarize the results of independent studies. By combining information from all relevant studies, meta-analysis can provide more precise estimates of the effects than those derived from the individual studies included within a review.
Historical review
Historical literature reviews focus on examining research throughout a period, often starting with the first time an issue, concept, theory, or phenomenon emerged in the literature, then tracing its evolution within the scholarship of a discipline. The purpose is to place research in a historical context to show familiarity with state-of-the-art developments and identify future research's likely directions.
Theoretical Review
This form aims to examine the corpus of theory accumulated regarding an issue, concept, theory, and phenomenon. The theoretical literature review helps to establish what theories exist, the relationships between them, the degree the existing approaches have been investigated, and to develop new hypotheses to be tested.
Scoping Review
The Scoping Review is often used at the beginning of an article, dissertation, or research proposal. It is conducted before the research to highlight gaps in the existing body of knowledge and explains why the project should be greenlit.
State-of-the-Art Review
The State-of-the-Art review is conducted periodically, focusing on the most recent research. It describes what is currently known, understood, or agreed upon regarding the research topic and highlights where there are still disagreements.
Can you use the first person in a literature review?
When writing literature reviews, you should avoid the usage of first-person pronouns. It means that instead of "I argue that" or "we argue that," the appropriate expression would be "this research paper argues that."
Do you need an abstract for a literature review?
Ideally, yes. It is always good to have a condensed summary that is self-contained and independent of the rest of your review. As for how to draft one, you can follow the same fundamental idea when preparing an abstract for a literature review. It should also include:
- The research topic and your motivation behind selecting it
- A one-sentence thesis statement
- An explanation of the kinds of literature featured in the review
- Summary of what you've learned
- Conclusions you drew from the literature you reviewed
- Potential implications and future scope for research
Here's an example of the abstract of a literature review
Is a literature review written in the past tense?
Yes, the literature review should ideally be written in the past tense. You should not use the present or future tense when writing one. The exceptions are when you have statements describing events that happened earlier than the literature you are reviewing or events that are currently occurring; then, you can use the past perfect or present perfect tenses.
How many sources for a literature review?
There are multiple approaches to deciding how many sources to include in a literature review section. The first approach would be to look level you are at as a researcher. For instance, a doctoral thesis might need 60+ sources. In contrast, you might only need to refer to 5-15 sources at the undergraduate level.
The second approach is based on the kind of literature review you are doing — whether it is merely a chapter of your paper or if it is a self-contained paper in itself. When it is just a chapter, sources should equal the total number of pages in your article's body. In the second scenario, you need at least three times as many sources as there are pages in your work.
Quick tips on how to write a literature review
To know how to write a literature review, you must clearly understand its impact and role in establishing your work as substantive research material.
You need to follow the below-mentioned steps, to write a literature review:
- Outline the purpose behind the literature review
- Search relevant literature
- Examine and assess the relevant resources
- Discover connections by drawing deep insights from the resources
- Structure planning to write a good literature review
1. Outline and identify the purpose of a literature review
As a first step on how to write a literature review, you must know what the research question or topic is and what shape you want your literature review to take. Ensure you understand the research topic inside out, or else seek clarifications. You must be able to the answer below questions before you start:
- How many sources do I need to include?
- What kind of sources should I analyze?
- How much should I critically evaluate each source?
- Should I summarize, synthesize or offer a critique of the sources?
- Do I need to include any background information or definitions?
Additionally, you should know that the narrower your research topic is, the swifter it will be for you to restrict the number of sources to be analyzed.
2. Search relevant literature
Dig deeper into search engines to discover what has already been published around your chosen topic. Make sure you thoroughly go through appropriate reference sources like books, reports, journal articles, government docs, and web-based resources.
You must prepare a list of keywords and their different variations. You can start your search from any library’s catalog, provided you are an active member of that institution. The exact keywords can be extended to widen your research over other databases and academic search engines like:
- Google Scholar
- Microsoft Academic
- Science.gov
Besides, it is not advisable to go through every resource word by word. Alternatively, what you can do is you can start by reading the abstract and then decide whether that source is relevant to your research or not.
Additionally, you must spend surplus time assessing the quality and relevance of resources. It would help if you tried preparing a list of citations to ensure that there lies no repetition of authors, publications, or articles in the literature review.
3. Examine and assess the sources
It is nearly impossible for you to go through every detail in the research article. So rather than trying to fetch every detail, you have to analyze and decide which research sources resemble closest and appear relevant to your chosen domain.
While analyzing the sources, you should look to find out answers to questions like:
- What question or problem has the author been describing and debating?
- What is the definition of critical aspects?
- How well the theories, approach, and methodology have been explained?
- Whether the research theory used some conventional or new innovative approach?
- How relevant are the key findings of the work?
- In what ways does it relate to other sources on the same topic?
- What challenges does this research paper pose to the existing theory
- What are the possible contributions or benefits it adds to the subject domain?
Be always mindful that you refer only to credible and authentic resources. It would be best if you always take references from different publications to validate your theory.
Always keep track of important information or data you can present in your literature review right from the beginning. It will help steer your path from any threats of plagiarism and also make it easier to curate an annotated bibliography or reference section.
4. Discover connections
At this stage, you must start deciding on the argument and structure of your literature review. To accomplish this, you must discover and identify the relations and connections between various resources while drafting your abstract.
A few aspects that you should be aware of while writing a literature review include:
- Rise to prominence: Theories and methods that have gained reputation and supporters over time.
- Constant scrutiny: Concepts or theories that repeatedly went under examination.
- Contradictions and conflicts: Theories, both the supporting and the contradictory ones, for the research topic.
- Knowledge gaps: What exactly does it fail to address, and how to bridge them with further research?
- Influential resources: Significant research projects available that have been upheld as milestones or perhaps, something that can modify the current trends
Once you join the dots between various past research works, it will be easier for you to draw a conclusion and identify your contribution to the existing knowledge base.
5. Structure planning to write a good literature review
There exist different ways towards planning and executing the structure of a literature review. The format of a literature review varies and depends upon the length of the research.
Like any other research paper, the literature review format must contain three sections: introduction, body, and conclusion. The goals and objectives of the research question determine what goes inside these three sections.
Nevertheless, a good literature review can be structured according to the chronological, thematic, methodological, or theoretical framework approach.
Literature review samples
1. Standalone
2. As a section of a research paper
How SciSpace Discover makes literature review a breeze?
SciSpace Discover is a one-stop solution to do an effective literature search and get barrier-free access to scientific knowledge. It is an excellent repository where you can find millions of only peer-reviewed articles and full-text PDF files. Here’s more on how you can use it:
Find the right information
Find what you want quickly and easily with comprehensive search filters that let you narrow down papers according to PDF availability, year of publishing, document type, and affiliated institution. Moreover, you can sort the results based on the publishing date, citation count, and relevance.
Assess credibility of papers quickly
When doing the literature review, it is critical to establish the quality of your sources. They form the foundation of your research. SciSpace Discover helps you assess the quality of a source by providing an overview of its references, citations, and performance metrics.
Get the complete picture in no time
SciSpace Discover’s personalized suggestion engine helps you stay on course and get the complete picture of the topic from one place. Every time you visit an article page, it provides you links to related papers. Besides that, it helps you understand what’s trending, who are the top authors, and who are the leading publishers on a topic.
Make referring sources super easy
To ensure you don't lose track of your sources, you must start noting down your references when doing the literature review. SciSpace Discover makes this step effortless. Click the 'cite' button on an article page, and you will receive preloaded citation text in multiple styles — all you've to do is copy-paste it into your manuscript.
Final tips on how to write a literature review
A massive chunk of time and effort is required to write a good literature review. But, if you go about it systematically, you'll be able to save a ton of time and build a solid foundation for your research.
We hope this guide has helped you answer several key questions you have about writing literature reviews.
Would you like to explore SciSpace Discover and kick off your literature search right away? You can get started here .
Frequently Asked Questions (FAQs)
1. how to start a literature review.
• What questions do you want to answer?
• What sources do you need to answer these questions?
• What information do these sources contain?
• How can you use this information to answer your questions?
2. What to include in a literature review?
• A brief background of the problem or issue
• What has previously been done to address the problem or issue
• A description of what you will do in your project
• How this study will contribute to research on the subject
3. Why literature review is important?
The literature review is an important part of any research project because it allows the writer to look at previous studies on a topic and determine existing gaps in the literature, as well as what has already been done. It will also help them to choose the most appropriate method for their own study.
4. How to cite a literature review in APA format?
To cite a literature review in APA style, you need to provide the author's name, the title of the article, and the year of publication. For example: Patel, A. B., & Stokes, G. S. (2012). The relationship between personality and intelligence: A meta-analysis of longitudinal research. Personality and Individual Differences, 53(1), 16-21
5. What are the components of a literature review?
• A brief introduction to the topic, including its background and context. The introduction should also include a rationale for why the study is being conducted and what it will accomplish.
• A description of the methodologies used in the study. This can include information about data collection methods, sample size, and statistical analyses.
• A presentation of the findings in an organized format that helps readers follow along with the author's conclusions.
6. What are common errors in writing literature review?
• Not spending enough time to critically evaluate the relevance of resources, observations and conclusions.
• Totally relying on secondary data while ignoring primary data.
• Letting your personal bias seep into your interpretation of existing literature.
• No detailed explanation of the procedure to discover and identify an appropriate literature review.
7. What are the 5 C's of writing literature review?
• Cite - the sources you utilized and referenced in your research.
• Compare - existing arguments, hypotheses, methodologies, and conclusions found in the knowledge base.
• Contrast - the arguments, topics, methodologies, approaches, and disputes that may be found in the literature.
• Critique - the literature and describe the ideas and opinions you find more convincing and why.
• Connect - the various studies you reviewed in your research.
8. How many sources should a literature review have?
When it is just a chapter, sources should equal the total number of pages in your article's body. if it is a self-contained paper in itself, you need at least three times as many sources as there are pages in your work.
9. Can literature review have diagrams?
• To represent an abstract idea or concept
• To explain the steps of a process or procedure
• To help readers understand the relationships between different concepts
10. How old should sources be in a literature review?
Sources for a literature review should be as current as possible or not older than ten years. The only exception to this rule is if you are reviewing a historical topic and need to use older sources.
11. What are the types of literature review?
• Argumentative review
• Integrative review
• Methodological review
• Systematic review
• Meta-analysis review
• Historical review
• Theoretical review
• Scoping review
• State-of-the-Art review
12. Is a literature review mandatory?
Yes. Literature review is a mandatory part of any research project. It is a critical step in the process that allows you to establish the scope of your research, and provide a background for the rest of your work.
But before you go,
- Six Online Tools for Easy Literature Review
- Evaluating literature review: systematic vs. scoping reviews
- Systematic Approaches to a Successful Literature Review
- Writing Integrative Literature Reviews: Guidelines and Examples
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How to write a superb literature review
Andy Tay is a freelance writer based in Singapore.
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Credit: Getty
Literature reviews are important resources for scientists. They provide historical context for a field while offering opinions on its future trajectory. Creating them can provide inspiration for one’s own research, as well as some practice in writing. But few scientists are trained in how to write a review — or in what constitutes an excellent one. Even picking the appropriate software to use can be an involved decision (see ‘Tools and techniques’). So Nature asked editors and working scientists with well-cited reviews for their tips.
WENTING ZHAO: Be focused and avoid jargon
Assistant professor of chemical and biomedical engineering, Nanyang Technological University, Singapore.
When I was a research student, review writing improved my understanding of the history of my field. I also learnt about unmet challenges in the field that triggered ideas.
For example, while writing my first review 1 as a PhD student, I was frustrated by how poorly we understood how cells actively sense, interact with and adapt to nanoparticles used in drug delivery. This experience motivated me to study how the surface properties of nanoparticles can be modified to enhance biological sensing. When I transitioned to my postdoctoral research, this question led me to discover the role of cell-membrane curvature, which led to publications and my current research focus. I wouldn’t have started in this area without writing that review.
![where do you put a literature review in a research paper](https://media.nature.com/w400/magazine-assets/d41586-020-03422-x/d41586-020-03422-x_17947370.jpg)
Collection: Careers toolkit
A common problem for students writing their first reviews is being overly ambitious. When I wrote mine, I imagined producing a comprehensive summary of every single type of nanomaterial used in biological applications. It ended up becoming a colossal piece of work, with too many papers discussed and without a clear way to categorize them. We published the work in the end, but decided to limit the discussion strictly to nanoparticles for biological sensing, rather than covering how different nanomaterials are used in biology.
My advice to students is to accept that a review is unlike a textbook: it should offer a more focused discussion, and it’s OK to skip some topics so that you do not distract your readers. Students should also consider editorial deadlines, especially for invited reviews: make sure that the review’s scope is not so extensive that it delays the writing.
A good review should also avoid jargon and explain the basic concepts for someone who is new to the field. Although I trained as an engineer, I’m interested in biology, and my research is about developing nanomaterials to manipulate proteins at the cell membrane and how this can affect ageing and cancer. As an ‘outsider’, the reviews that I find most useful for these biological topics are those that speak to me in accessible scientific language.
![where do you put a literature review in a research paper A man in glasses looking at the camera.](https://media.nature.com/lw767/magazine-assets/d41586-020-03422-x/d41586-020-03422-x_18645262.jpg)
Bozhi Tian likes to get a variety of perspectives into a review. Credit: Aleksander Prominski
BOZHI TIAN: Have a process and develop your style
Associate professor of chemistry, University of Chicago, Illinois.
In my lab, we start by asking: what is the purpose of this review? My reasons for writing one can include the chance to contribute insights to the scientific community and identify opportunities for my research. I also see review writing as a way to train early-career researchers in soft skills such as project management and leadership. This is especially true for lead authors, because they will learn to work with their co-authors to integrate the various sections into a piece with smooth transitions and no overlaps.
After we have identified the need and purpose of a review article, I will form a team from the researchers in my lab. I try to include students with different areas of expertise, because it is useful to get a variety of perspectives. For example, in the review ‘An atlas of nano-enabled neural interfaces’ 2 , we had authors with backgrounds in biophysics, neuroengineering, neurobiology and materials sciences focusing on different sections of the review.
After this, I will discuss an outline with my team. We go through multiple iterations to make sure that we have scanned the literature sufficiently and do not repeat discussions that have appeared in other reviews. It is also important that the outline is not decided by me alone: students often have fresh ideas that they can bring to the table. Once this is done, we proceed with the writing.
I often remind my students to imagine themselves as ‘artists of science’ and encourage them to develop how they write and present information. Adding more words isn’t always the best way: for example, I enjoy using tables to summarize research progress and suggest future research trajectories. I’ve also considered including short videos in our review papers to highlight key aspects of the work. I think this can increase readership and accessibility because these videos can be easily shared on social-media platforms.
ANKITA ANIRBAN: Timeliness and figures make a huge difference
Editor, Nature Reviews Physics .
One of my roles as a journal editor is to evaluate proposals for reviews. The best proposals are timely and clearly explain why readers should pay attention to the proposed topic.
It is not enough for a review to be a summary of the latest growth in the literature: the most interesting reviews instead provide a discussion about disagreements in the field.
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Scientists often centre the story of their primary research papers around their figures — but when it comes to reviews, figures often take a secondary role. In my opinion, review figures are more important than most people think. One of my favourite review-style articles 3 presents a plot bringing together data from multiple research papers (many of which directly contradict each other). This is then used to identify broad trends and suggest underlying mechanisms that could explain all of the different conclusions.
An important role of a review article is to introduce researchers to a field. For this, schematic figures can be useful to illustrate the science being discussed, in much the same way as the first slide of a talk should. That is why, at Nature Reviews, we have in-house illustrators to assist authors. However, simplicity is key, and even without support from professional illustrators, researchers can still make use of many free drawing tools to enhance the value of their review figures.
![where do you put a literature review in a research paper A woman wearing a lab coat smiles at the camera.](https://media.nature.com/lw767/magazine-assets/d41586-020-03422-x/d41586-020-03422-x_18645264.jpg)
Yoojin Choi recommends that researchers be open to critiques when writing reviews. Credit: Yoojin Choi
YOOJIN CHOI: Stay updated and be open to suggestions
Research assistant professor, Korea Advanced Institute of Science and Technology, Daejeon.
I started writing the review ‘Biosynthesis of inorganic nanomaterials using microbial cells and bacteriophages’ 4 as a PhD student in 2018. It took me one year to write the first draft because I was working on the review alongside my PhD research and mostly on my own, with support from my adviser. It took a further year to complete the processes of peer review, revision and publication. During this time, many new papers and even competing reviews were published. To provide the most up-to-date and original review, I had to stay abreast of the literature. In my case, I made use of Google Scholar, which I set to send me daily updates of relevant literature based on key words.
Through my review-writing process, I also learnt to be more open to critiques to enhance the value and increase the readership of my work. Initially, my review was focused only on using microbial cells such as bacteria to produce nanomaterials, which was the subject of my PhD research. Bacteria such as these are known as biofactories: that is, organisms that produce biological material which can be modified to produce useful materials, such as magnetic nanoparticles for drug-delivery purposes.
![where do you put a literature review in a research paper](https://media.nature.com/w400/magazine-assets/d41586-020-03422-x/d41586-020-03422-x_18649438.jpg)
Synchronized editing: the future of collaborative writing
However, when the first peer-review report came back, all three reviewers suggested expanding the review to cover another type of biofactory: bacteriophages. These are essentially viruses that infect bacteria, and they can also produce nanomaterials.
The feedback eventually led me to include a discussion of the differences between the various biofactories (bacteriophages, bacteria, fungi and microalgae) and their advantages and disadvantages. This turned out to be a great addition because it made the review more comprehensive.
Writing the review also led me to an idea about using nanomaterial-modified microorganisms to produce chemicals, which I’m still researching now.
PAULA MARTIN-GONZALEZ: Make good use of technology
PhD student, University of Cambridge, UK.
Just before the coronavirus lockdown, my PhD adviser and I decided to write a literature review discussing the integration of medical imaging with genomics to improve ovarian cancer management.
As I was researching the review, I noticed a trend in which some papers were consistently being cited by many other papers in the field. It was clear to me that those papers must be important, but as a new member of the field of integrated cancer biology, it was difficult to immediately find and read all of these ‘seminal papers’.
That was when I decided to code a small application to make my literature research more efficient. Using my code, users can enter a query, such as ‘ovarian cancer, computer tomography, radiomics’, and the application searches for all relevant literature archived in databases such as PubMed that feature these key words.
The code then identifies the relevant papers and creates a citation graph of all the references cited in the results of the search. The software highlights papers that have many citation relationships with other papers in the search, and could therefore be called seminal papers.
My code has substantially improved how I organize papers and has informed me of key publications and discoveries in my research field: something that would have taken more time and experience in the field otherwise. After I shared my code on GitHub, I received feedback that it can be daunting for researchers who are not used to coding. Consequently, I am hoping to build a more user-friendly interface in a form of a web page, akin to PubMed or Google Scholar, where users can simply input their queries to generate citation graphs.
Tools and techniques
Most reference managers on the market offer similar capabilities when it comes to providing a Microsoft Word plug-in and producing different citation styles. But depending on your working preferences, some might be more suitable than others.
Reference managers
Attribute | EndNote | Mendeley | Zotero | Paperpile |
---|---|---|---|---|
Cost | A one-time cost of around US$340 but comes with discounts for academics; around $150 for students | Free version available | Free version available | Low and comes with academic discounts |
Level of user support | Extensive user tutorials available; dedicated help desk | Extensive user tutorials available; global network of 5,000 volunteers to advise users | Forum discussions to troubleshoot | Forum discussions to troubleshoot |
Desktop version available for offline use? | Available | Available | Available | Unavailable |
Document storage on cloud | Up to 2 GB (free version) | Up to 2 GB (free version) | Up to 300 MB (free version) | Storage linked to Google Drive |
Compatible with Google Docs? | No | No | Yes | Yes |
Supports collaborative working? | No group working | References can be shared or edited by a maximum of three other users (or more in the paid-for version) | No limit on the number of users | No limit on the number of users |
Here is a comparison of the more popular collaborative writing tools, but there are other options, including Fidus Writer, Manuscript.io, Authorea and Stencila.
Collaborative writing tools
Attribute | Manubot | Overleaf | Google Docs |
---|---|---|---|
Cost | Free, open source | $15–30 per month, comes with academic discounts | Free, comes with a Google account |
Writing language | Type and write in Markdown* | Type and format in LaTex* | Standard word processor |
Can be used with a mobile device? | No | No | Yes |
References | Bibliographies are built using DOIs, circumventing reference managers | Citation styles can be imported from reference managers | Possible but requires additional referencing tools in a plug-in, such as Paperpile |
*Markdown and LaTex are code-based formatting languages favoured by physicists, mathematicians and computer scientists who code on a regular basis, and less popular in other disciplines such as biology and chemistry.
doi: https://doi.org/10.1038/d41586-020-03422-x
Interviews have been edited for length and clarity.
Updates & Corrections
Correction 09 December 2020 : An earlier version of the tables in this article included some incorrect details about the programs Zotero, Endnote and Manubot. These have now been corrected.
Hsing, I.-M., Xu, Y. & Zhao, W. Electroanalysis 19 , 755–768 (2007).
Article Google Scholar
Ledesma, H. A. et al. Nature Nanotechnol. 14 , 645–657 (2019).
Article PubMed Google Scholar
Brahlek, M., Koirala, N., Bansal, N. & Oh, S. Solid State Commun. 215–216 , 54–62 (2015).
Choi, Y. & Lee, S. Y. Nature Rev. Chem . https://doi.org/10.1038/s41570-020-00221-w (2020).
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- Steps in Conducting a Literature Review
What is a literature review?
A literature review is an integrated analysis -- not just a summary-- of scholarly writings and other relevant evidence related directly to your research question. That is, it represents a synthesis of the evidence that provides background information on your topic and shows a association between the evidence and your research question.
A literature review may be a stand alone work or the introduction to a larger research paper, depending on the assignment. Rely heavily on the guidelines your instructor has given you.
Why is it important?
A literature review is important because it:
- Explains the background of research on a topic.
- Demonstrates why a topic is significant to a subject area.
- Discovers relationships between research studies/ideas.
- Identifies major themes, concepts, and researchers on a topic.
- Identifies critical gaps and points of disagreement.
- Discusses further research questions that logically come out of the previous studies.
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1. Choose a topic. Define your research question.
Your literature review should be guided by your central research question. The literature represents background and research developments related to a specific research question, interpreted and analyzed by you in a synthesized way.
- Make sure your research question is not too broad or too narrow. Is it manageable?
- Begin writing down terms that are related to your question. These will be useful for searches later.
- If you have the opportunity, discuss your topic with your professor and your class mates.
2. Decide on the scope of your review
How many studies do you need to look at? How comprehensive should it be? How many years should it cover?
- This may depend on your assignment. How many sources does the assignment require?
3. Select the databases you will use to conduct your searches.
Make a list of the databases you will search.
Where to find databases:
- use the tabs on this guide
- Find other databases in the Nursing Information Resources web page
- More on the Medical Library web page
- ... and more on the Yale University Library web page
4. Conduct your searches to find the evidence. Keep track of your searches.
- Use the key words in your question, as well as synonyms for those words, as terms in your search. Use the database tutorials for help.
- Save the searches in the databases. This saves time when you want to redo, or modify, the searches. It is also helpful to use as a guide is the searches are not finding any useful results.
- Review the abstracts of research studies carefully. This will save you time.
- Use the bibliographies and references of research studies you find to locate others.
- Check with your professor, or a subject expert in the field, if you are missing any key works in the field.
- Ask your librarian for help at any time.
- Use a citation manager, such as EndNote as the repository for your citations. See the EndNote tutorials for help.
Review the literature
Some questions to help you analyze the research:
- What was the research question of the study you are reviewing? What were the authors trying to discover?
- Was the research funded by a source that could influence the findings?
- What were the research methodologies? Analyze its literature review, the samples and variables used, the results, and the conclusions.
- Does the research seem to be complete? Could it have been conducted more soundly? What further questions does it raise?
- If there are conflicting studies, why do you think that is?
- How are the authors viewed in the field? Has this study been cited? If so, how has it been analyzed?
Tips:
- Review the abstracts carefully.
- Keep careful notes so that you may track your thought processes during the research process.
- Create a matrix of the studies for easy analysis, and synthesis, across all of the studies.
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Literature Reviews
- Searching for Literature
- Organizing Literature and Taking Notes
- Writing and Editing the Paper
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Organizing Your Paper
Before you begin writing your paper, you will need to decide upon a way to organize your information. You can organize your paper using a number of different strategies, such as the following:
- Topics and subtopics : Discussing your sources in relation to different topics and subtopics; probably the most common approach
- Chronologically : Discussing your sources from oldest to newest in order to show trends or changes in the approach to a topic over time
- Methods : Discussing your sources by different methods that are used to approach the topic
When literature reviews are incorporated into a research paper, they are often structured using the funnel method , which begins with a broad overview of a topic and then narrows down to more specific themes before focusing in on the specific research question that the paper will address.
A literature review paper often follows this basic organization:
Introduction
- Describes the importance of the topic
- Defines key terms
- Describes the goals of the review
- Provides an overview of the literature to be discussed (e.g., methods, trends, etc.) (optional)
- Describes parameters of the review and particular search methods used (optional)
- Discusses findings of sources, as well as strengths, weaknesses, similarities, differences, contradictions, and gaps
- Divides content into sections (for longer reviews), uses headings and subheadings to indicate section divisions, and provides brief summaries at the end of each section
- Summarizes what is known about the topic
- Discusses implications for practice
- Discusses areas for further research
Synthesizing Sources
A literature review paper not only describes and evaluates the scholarly research literature related to a particular topic, but it also synthesizes that information. Synthesis is the process of weaving together information from sources to arrive at new analyses and insights.
To help you prepare to synthesize sources in your paper, you can take the topic matrix that you prepared as you were organizing your sources, and flesh it out into a synthesis matrix that contains detailed notes from each source as they relate to different topics and subtopics of your literature review. Once you've completed your synthesis matrix, you can more easily identify ways that sources relate to each other in terms of their similarities and differences, methodological strengths and weakness, and contradictions and gaps. The video below shows how to create a synthesis matrix.
Video: Synthesis Matrix Tutorial by Andrew Davis .
Writing Your Paper
A literature review paper should flow logically from one topic to the next. As you write your paper, consider these tips:
- Write in a formal voice and with an impartial tone.
- Define critical terms and describe key theories.
- Use topic sentences to clearly indicate what each paragraph is about.
- Use transitions to make links between sections.
- Introduce acronyms upon first using them.
- Call attention to seminal (i.e., highly influential; groundbreaking) studies.
- Clearly distinguish between your ideas and those of the authors you cite.
- Cite multiple sources for a single idea, if appropriate.
- Create a list of references that follows appropriate style guidelines.
- Give your paper a title that conveys what the literature review is about.
- Once you have written your paper, carefully proofread it for errors.
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Ten Simple Rules for Writing a Literature Review
Marco pautasso.
1 Centre for Functional and Evolutionary Ecology (CEFE), CNRS, Montpellier, France
2 Centre for Biodiversity Synthesis and Analysis (CESAB), FRB, Aix-en-Provence, France
Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific publications [1] . For example, compared to 1991, in 2008 three, eight, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, respectively [2] . Given such mountains of papers, scientists cannot be expected to examine in detail every single new paper relevant to their interests [3] . Thus, it is both advantageous and necessary to rely on regular summaries of the recent literature. Although recognition for scientists mainly comes from primary research, timely literature reviews can lead to new synthetic insights and are often widely read [4] . For such summaries to be useful, however, they need to be compiled in a professional way [5] .
When starting from scratch, reviewing the literature can require a titanic amount of work. That is why researchers who have spent their career working on a certain research issue are in a perfect position to review that literature. Some graduate schools are now offering courses in reviewing the literature, given that most research students start their project by producing an overview of what has already been done on their research issue [6] . However, it is likely that most scientists have not thought in detail about how to approach and carry out a literature review.
Reviewing the literature requires the ability to juggle multiple tasks, from finding and evaluating relevant material to synthesising information from various sources, from critical thinking to paraphrasing, evaluating, and citation skills [7] . In this contribution, I share ten simple rules I learned working on about 25 literature reviews as a PhD and postdoctoral student. Ideas and insights also come from discussions with coauthors and colleagues, as well as feedback from reviewers and editors.
Rule 1: Define a Topic and Audience
How to choose which topic to review? There are so many issues in contemporary science that you could spend a lifetime of attending conferences and reading the literature just pondering what to review. On the one hand, if you take several years to choose, several other people may have had the same idea in the meantime. On the other hand, only a well-considered topic is likely to lead to a brilliant literature review [8] . The topic must at least be:
- interesting to you (ideally, you should have come across a series of recent papers related to your line of work that call for a critical summary),
- an important aspect of the field (so that many readers will be interested in the review and there will be enough material to write it), and
- a well-defined issue (otherwise you could potentially include thousands of publications, which would make the review unhelpful).
Ideas for potential reviews may come from papers providing lists of key research questions to be answered [9] , but also from serendipitous moments during desultory reading and discussions. In addition to choosing your topic, you should also select a target audience. In many cases, the topic (e.g., web services in computational biology) will automatically define an audience (e.g., computational biologists), but that same topic may also be of interest to neighbouring fields (e.g., computer science, biology, etc.).
Rule 2: Search and Re-search the Literature
After having chosen your topic and audience, start by checking the literature and downloading relevant papers. Five pieces of advice here:
- keep track of the search items you use (so that your search can be replicated [10] ),
- keep a list of papers whose pdfs you cannot access immediately (so as to retrieve them later with alternative strategies),
- use a paper management system (e.g., Mendeley, Papers, Qiqqa, Sente),
- define early in the process some criteria for exclusion of irrelevant papers (these criteria can then be described in the review to help define its scope), and
- do not just look for research papers in the area you wish to review, but also seek previous reviews.
The chances are high that someone will already have published a literature review ( Figure 1 ), if not exactly on the issue you are planning to tackle, at least on a related topic. If there are already a few or several reviews of the literature on your issue, my advice is not to give up, but to carry on with your own literature review,
![Click on image to zoom An external file that holds a picture, illustration, etc.
Object name is pcbi.1003149.g001.jpg](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3715443/bin/pcbi.1003149.g001.jpg)
The bottom-right situation (many literature reviews but few research papers) is not just a theoretical situation; it applies, for example, to the study of the impacts of climate change on plant diseases, where there appear to be more literature reviews than research studies [33] .
- discussing in your review the approaches, limitations, and conclusions of past reviews,
- trying to find a new angle that has not been covered adequately in the previous reviews, and
- incorporating new material that has inevitably accumulated since their appearance.
When searching the literature for pertinent papers and reviews, the usual rules apply:
- be thorough,
- use different keywords and database sources (e.g., DBLP, Google Scholar, ISI Proceedings, JSTOR Search, Medline, Scopus, Web of Science), and
- look at who has cited past relevant papers and book chapters.
Rule 3: Take Notes While Reading
If you read the papers first, and only afterwards start writing the review, you will need a very good memory to remember who wrote what, and what your impressions and associations were while reading each single paper. My advice is, while reading, to start writing down interesting pieces of information, insights about how to organize the review, and thoughts on what to write. This way, by the time you have read the literature you selected, you will already have a rough draft of the review.
Of course, this draft will still need much rewriting, restructuring, and rethinking to obtain a text with a coherent argument [11] , but you will have avoided the danger posed by staring at a blank document. Be careful when taking notes to use quotation marks if you are provisionally copying verbatim from the literature. It is advisable then to reformulate such quotes with your own words in the final draft. It is important to be careful in noting the references already at this stage, so as to avoid misattributions. Using referencing software from the very beginning of your endeavour will save you time.
Rule 4: Choose the Type of Review You Wish to Write
After having taken notes while reading the literature, you will have a rough idea of the amount of material available for the review. This is probably a good time to decide whether to go for a mini- or a full review. Some journals are now favouring the publication of rather short reviews focusing on the last few years, with a limit on the number of words and citations. A mini-review is not necessarily a minor review: it may well attract more attention from busy readers, although it will inevitably simplify some issues and leave out some relevant material due to space limitations. A full review will have the advantage of more freedom to cover in detail the complexities of a particular scientific development, but may then be left in the pile of the very important papers “to be read” by readers with little time to spare for major monographs.
There is probably a continuum between mini- and full reviews. The same point applies to the dichotomy of descriptive vs. integrative reviews. While descriptive reviews focus on the methodology, findings, and interpretation of each reviewed study, integrative reviews attempt to find common ideas and concepts from the reviewed material [12] . A similar distinction exists between narrative and systematic reviews: while narrative reviews are qualitative, systematic reviews attempt to test a hypothesis based on the published evidence, which is gathered using a predefined protocol to reduce bias [13] , [14] . When systematic reviews analyse quantitative results in a quantitative way, they become meta-analyses. The choice between different review types will have to be made on a case-by-case basis, depending not just on the nature of the material found and the preferences of the target journal(s), but also on the time available to write the review and the number of coauthors [15] .
Rule 5: Keep the Review Focused, but Make It of Broad Interest
Whether your plan is to write a mini- or a full review, it is good advice to keep it focused 16 , 17 . Including material just for the sake of it can easily lead to reviews that are trying to do too many things at once. The need to keep a review focused can be problematic for interdisciplinary reviews, where the aim is to bridge the gap between fields [18] . If you are writing a review on, for example, how epidemiological approaches are used in modelling the spread of ideas, you may be inclined to include material from both parent fields, epidemiology and the study of cultural diffusion. This may be necessary to some extent, but in this case a focused review would only deal in detail with those studies at the interface between epidemiology and the spread of ideas.
While focus is an important feature of a successful review, this requirement has to be balanced with the need to make the review relevant to a broad audience. This square may be circled by discussing the wider implications of the reviewed topic for other disciplines.
Rule 6: Be Critical and Consistent
Reviewing the literature is not stamp collecting. A good review does not just summarize the literature, but discusses it critically, identifies methodological problems, and points out research gaps [19] . After having read a review of the literature, a reader should have a rough idea of:
- the major achievements in the reviewed field,
- the main areas of debate, and
- the outstanding research questions.
It is challenging to achieve a successful review on all these fronts. A solution can be to involve a set of complementary coauthors: some people are excellent at mapping what has been achieved, some others are very good at identifying dark clouds on the horizon, and some have instead a knack at predicting where solutions are going to come from. If your journal club has exactly this sort of team, then you should definitely write a review of the literature! In addition to critical thinking, a literature review needs consistency, for example in the choice of passive vs. active voice and present vs. past tense.
Rule 7: Find a Logical Structure
Like a well-baked cake, a good review has a number of telling features: it is worth the reader's time, timely, systematic, well written, focused, and critical. It also needs a good structure. With reviews, the usual subdivision of research papers into introduction, methods, results, and discussion does not work or is rarely used. However, a general introduction of the context and, toward the end, a recapitulation of the main points covered and take-home messages make sense also in the case of reviews. For systematic reviews, there is a trend towards including information about how the literature was searched (database, keywords, time limits) [20] .
How can you organize the flow of the main body of the review so that the reader will be drawn into and guided through it? It is generally helpful to draw a conceptual scheme of the review, e.g., with mind-mapping techniques. Such diagrams can help recognize a logical way to order and link the various sections of a review [21] . This is the case not just at the writing stage, but also for readers if the diagram is included in the review as a figure. A careful selection of diagrams and figures relevant to the reviewed topic can be very helpful to structure the text too [22] .
Rule 8: Make Use of Feedback
Reviews of the literature are normally peer-reviewed in the same way as research papers, and rightly so [23] . As a rule, incorporating feedback from reviewers greatly helps improve a review draft. Having read the review with a fresh mind, reviewers may spot inaccuracies, inconsistencies, and ambiguities that had not been noticed by the writers due to rereading the typescript too many times. It is however advisable to reread the draft one more time before submission, as a last-minute correction of typos, leaps, and muddled sentences may enable the reviewers to focus on providing advice on the content rather than the form.
Feedback is vital to writing a good review, and should be sought from a variety of colleagues, so as to obtain a diversity of views on the draft. This may lead in some cases to conflicting views on the merits of the paper, and on how to improve it, but such a situation is better than the absence of feedback. A diversity of feedback perspectives on a literature review can help identify where the consensus view stands in the landscape of the current scientific understanding of an issue [24] .
Rule 9: Include Your Own Relevant Research, but Be Objective
In many cases, reviewers of the literature will have published studies relevant to the review they are writing. This could create a conflict of interest: how can reviewers report objectively on their own work [25] ? Some scientists may be overly enthusiastic about what they have published, and thus risk giving too much importance to their own findings in the review. However, bias could also occur in the other direction: some scientists may be unduly dismissive of their own achievements, so that they will tend to downplay their contribution (if any) to a field when reviewing it.
In general, a review of the literature should neither be a public relations brochure nor an exercise in competitive self-denial. If a reviewer is up to the job of producing a well-organized and methodical review, which flows well and provides a service to the readership, then it should be possible to be objective in reviewing one's own relevant findings. In reviews written by multiple authors, this may be achieved by assigning the review of the results of a coauthor to different coauthors.
Rule 10: Be Up-to-Date, but Do Not Forget Older Studies
Given the progressive acceleration in the publication of scientific papers, today's reviews of the literature need awareness not just of the overall direction and achievements of a field of inquiry, but also of the latest studies, so as not to become out-of-date before they have been published. Ideally, a literature review should not identify as a major research gap an issue that has just been addressed in a series of papers in press (the same applies, of course, to older, overlooked studies (“sleeping beauties” [26] )). This implies that literature reviewers would do well to keep an eye on electronic lists of papers in press, given that it can take months before these appear in scientific databases. Some reviews declare that they have scanned the literature up to a certain point in time, but given that peer review can be a rather lengthy process, a full search for newly appeared literature at the revision stage may be worthwhile. Assessing the contribution of papers that have just appeared is particularly challenging, because there is little perspective with which to gauge their significance and impact on further research and society.
Inevitably, new papers on the reviewed topic (including independently written literature reviews) will appear from all quarters after the review has been published, so that there may soon be the need for an updated review. But this is the nature of science [27] – [32] . I wish everybody good luck with writing a review of the literature.
Acknowledgments
Many thanks to M. Barbosa, K. Dehnen-Schmutz, T. Döring, D. Fontaneto, M. Garbelotto, O. Holdenrieder, M. Jeger, D. Lonsdale, A. MacLeod, P. Mills, M. Moslonka-Lefebvre, G. Stancanelli, P. Weisberg, and X. Xu for insights and discussions, and to P. Bourne, T. Matoni, and D. Smith for helpful comments on a previous draft.
Funding Statement
This work was funded by the French Foundation for Research on Biodiversity (FRB) through its Centre for Synthesis and Analysis of Biodiversity data (CESAB), as part of the NETSEED research project. The funders had no role in the preparation of the manuscript.
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Literature Reviews
What this handout is about.
This handout will explain what literature reviews are and offer insights into the form and construction of literature reviews in the humanities, social sciences, and sciences.
Introduction
OK. You’ve got to write a literature review. You dust off a novel and a book of poetry, settle down in your chair, and get ready to issue a “thumbs up” or “thumbs down” as you leaf through the pages. “Literature review” done. Right?
Wrong! The “literature” of a literature review refers to any collection of materials on a topic, not necessarily the great literary texts of the world. “Literature” could be anything from a set of government pamphlets on British colonial methods in Africa to scholarly articles on the treatment of a torn ACL. And a review does not necessarily mean that your reader wants you to give your personal opinion on whether or not you liked these sources.
What is a literature review, then?
A literature review discusses published information in a particular subject area, and sometimes information in a particular subject area within a certain time period.
A literature review can be just a simple summary of the sources, but it usually has an organizational pattern and combines both summary and synthesis. A summary is a recap of the important information of the source, but a synthesis is a re-organization, or a reshuffling, of that information. It might give a new interpretation of old material or combine new with old interpretations. Or it might trace the intellectual progression of the field, including major debates. And depending on the situation, the literature review may evaluate the sources and advise the reader on the most pertinent or relevant.
But how is a literature review different from an academic research paper?
The main focus of an academic research paper is to develop a new argument, and a research paper is likely to contain a literature review as one of its parts. In a research paper, you use the literature as a foundation and as support for a new insight that you contribute. The focus of a literature review, however, is to summarize and synthesize the arguments and ideas of others without adding new contributions.
Why do we write literature reviews?
Literature reviews provide you with a handy guide to a particular topic. If you have limited time to conduct research, literature reviews can give you an overview or act as a stepping stone. For professionals, they are useful reports that keep them up to date with what is current in the field. For scholars, the depth and breadth of the literature review emphasizes the credibility of the writer in his or her field. Literature reviews also provide a solid background for a research paper’s investigation. Comprehensive knowledge of the literature of the field is essential to most research papers.
Who writes these things, anyway?
Literature reviews are written occasionally in the humanities, but mostly in the sciences and social sciences; in experiment and lab reports, they constitute a section of the paper. Sometimes a literature review is written as a paper in itself.
Let’s get to it! What should I do before writing the literature review?
If your assignment is not very specific, seek clarification from your instructor:
- Roughly how many sources should you include?
- What types of sources (books, journal articles, websites)?
- Should you summarize, synthesize, or critique your sources by discussing a common theme or issue?
- Should you evaluate your sources?
- Should you provide subheadings and other background information, such as definitions and/or a history?
Find models
Look for other literature reviews in your area of interest or in the discipline and read them to get a sense of the types of themes you might want to look for in your own research or ways to organize your final review. You can simply put the word “review” in your search engine along with your other topic terms to find articles of this type on the Internet or in an electronic database. The bibliography or reference section of sources you’ve already read are also excellent entry points into your own research.
Narrow your topic
There are hundreds or even thousands of articles and books on most areas of study. The narrower your topic, the easier it will be to limit the number of sources you need to read in order to get a good survey of the material. Your instructor will probably not expect you to read everything that’s out there on the topic, but you’ll make your job easier if you first limit your scope.
Keep in mind that UNC Libraries have research guides and to databases relevant to many fields of study. You can reach out to the subject librarian for a consultation: https://library.unc.edu/support/consultations/ .
And don’t forget to tap into your professor’s (or other professors’) knowledge in the field. Ask your professor questions such as: “If you had to read only one book from the 90’s on topic X, what would it be?” Questions such as this help you to find and determine quickly the most seminal pieces in the field.
Consider whether your sources are current
Some disciplines require that you use information that is as current as possible. In the sciences, for instance, treatments for medical problems are constantly changing according to the latest studies. Information even two years old could be obsolete. However, if you are writing a review in the humanities, history, or social sciences, a survey of the history of the literature may be what is needed, because what is important is how perspectives have changed through the years or within a certain time period. Try sorting through some other current bibliographies or literature reviews in the field to get a sense of what your discipline expects. You can also use this method to consider what is currently of interest to scholars in this field and what is not.
Strategies for writing the literature review
Find a focus.
A literature review, like a term paper, is usually organized around ideas, not the sources themselves as an annotated bibliography would be organized. This means that you will not just simply list your sources and go into detail about each one of them, one at a time. No. As you read widely but selectively in your topic area, consider instead what themes or issues connect your sources together. Do they present one or different solutions? Is there an aspect of the field that is missing? How well do they present the material and do they portray it according to an appropriate theory? Do they reveal a trend in the field? A raging debate? Pick one of these themes to focus the organization of your review.
Convey it to your reader
A literature review may not have a traditional thesis statement (one that makes an argument), but you do need to tell readers what to expect. Try writing a simple statement that lets the reader know what is your main organizing principle. Here are a couple of examples:
The current trend in treatment for congestive heart failure combines surgery and medicine. More and more cultural studies scholars are accepting popular media as a subject worthy of academic consideration.
Consider organization
You’ve got a focus, and you’ve stated it clearly and directly. Now what is the most effective way of presenting the information? What are the most important topics, subtopics, etc., that your review needs to include? And in what order should you present them? Develop an organization for your review at both a global and local level:
First, cover the basic categories
Just like most academic papers, literature reviews also must contain at least three basic elements: an introduction or background information section; the body of the review containing the discussion of sources; and, finally, a conclusion and/or recommendations section to end the paper. The following provides a brief description of the content of each:
- Introduction: Gives a quick idea of the topic of the literature review, such as the central theme or organizational pattern.
- Body: Contains your discussion of sources and is organized either chronologically, thematically, or methodologically (see below for more information on each).
- Conclusions/Recommendations: Discuss what you have drawn from reviewing literature so far. Where might the discussion proceed?
Organizing the body
Once you have the basic categories in place, then you must consider how you will present the sources themselves within the body of your paper. Create an organizational method to focus this section even further.
To help you come up with an overall organizational framework for your review, consider the following scenario:
You’ve decided to focus your literature review on materials dealing with sperm whales. This is because you’ve just finished reading Moby Dick, and you wonder if that whale’s portrayal is really real. You start with some articles about the physiology of sperm whales in biology journals written in the 1980’s. But these articles refer to some British biological studies performed on whales in the early 18th century. So you check those out. Then you look up a book written in 1968 with information on how sperm whales have been portrayed in other forms of art, such as in Alaskan poetry, in French painting, or on whale bone, as the whale hunters in the late 19th century used to do. This makes you wonder about American whaling methods during the time portrayed in Moby Dick, so you find some academic articles published in the last five years on how accurately Herman Melville portrayed the whaling scene in his novel.
Now consider some typical ways of organizing the sources into a review:
- Chronological: If your review follows the chronological method, you could write about the materials above according to when they were published. For instance, first you would talk about the British biological studies of the 18th century, then about Moby Dick, published in 1851, then the book on sperm whales in other art (1968), and finally the biology articles (1980s) and the recent articles on American whaling of the 19th century. But there is relatively no continuity among subjects here. And notice that even though the sources on sperm whales in other art and on American whaling are written recently, they are about other subjects/objects that were created much earlier. Thus, the review loses its chronological focus.
- By publication: Order your sources by publication chronology, then, only if the order demonstrates a more important trend. For instance, you could order a review of literature on biological studies of sperm whales if the progression revealed a change in dissection practices of the researchers who wrote and/or conducted the studies.
- By trend: A better way to organize the above sources chronologically is to examine the sources under another trend, such as the history of whaling. Then your review would have subsections according to eras within this period. For instance, the review might examine whaling from pre-1600-1699, 1700-1799, and 1800-1899. Under this method, you would combine the recent studies on American whaling in the 19th century with Moby Dick itself in the 1800-1899 category, even though the authors wrote a century apart.
- Thematic: Thematic reviews of literature are organized around a topic or issue, rather than the progression of time. However, progression of time may still be an important factor in a thematic review. For instance, the sperm whale review could focus on the development of the harpoon for whale hunting. While the study focuses on one topic, harpoon technology, it will still be organized chronologically. The only difference here between a “chronological” and a “thematic” approach is what is emphasized the most: the development of the harpoon or the harpoon technology.But more authentic thematic reviews tend to break away from chronological order. For instance, a thematic review of material on sperm whales might examine how they are portrayed as “evil” in cultural documents. The subsections might include how they are personified, how their proportions are exaggerated, and their behaviors misunderstood. A review organized in this manner would shift between time periods within each section according to the point made.
- Methodological: A methodological approach differs from the two above in that the focusing factor usually does not have to do with the content of the material. Instead, it focuses on the “methods” of the researcher or writer. For the sperm whale project, one methodological approach would be to look at cultural differences between the portrayal of whales in American, British, and French art work. Or the review might focus on the economic impact of whaling on a community. A methodological scope will influence either the types of documents in the review or the way in which these documents are discussed. Once you’ve decided on the organizational method for the body of the review, the sections you need to include in the paper should be easy to figure out. They should arise out of your organizational strategy. In other words, a chronological review would have subsections for each vital time period. A thematic review would have subtopics based upon factors that relate to the theme or issue.
Sometimes, though, you might need to add additional sections that are necessary for your study, but do not fit in the organizational strategy of the body. What other sections you include in the body is up to you. Put in only what is necessary. Here are a few other sections you might want to consider:
- Current Situation: Information necessary to understand the topic or focus of the literature review.
- History: The chronological progression of the field, the literature, or an idea that is necessary to understand the literature review, if the body of the literature review is not already a chronology.
- Methods and/or Standards: The criteria you used to select the sources in your literature review or the way in which you present your information. For instance, you might explain that your review includes only peer-reviewed articles and journals.
Questions for Further Research: What questions about the field has the review sparked? How will you further your research as a result of the review?
Begin composing
Once you’ve settled on a general pattern of organization, you’re ready to write each section. There are a few guidelines you should follow during the writing stage as well. Here is a sample paragraph from a literature review about sexism and language to illuminate the following discussion:
However, other studies have shown that even gender-neutral antecedents are more likely to produce masculine images than feminine ones (Gastil, 1990). Hamilton (1988) asked students to complete sentences that required them to fill in pronouns that agreed with gender-neutral antecedents such as “writer,” “pedestrian,” and “persons.” The students were asked to describe any image they had when writing the sentence. Hamilton found that people imagined 3.3 men to each woman in the masculine “generic” condition and 1.5 men per woman in the unbiased condition. Thus, while ambient sexism accounted for some of the masculine bias, sexist language amplified the effect. (Source: Erika Falk and Jordan Mills, “Why Sexist Language Affects Persuasion: The Role of Homophily, Intended Audience, and Offense,” Women and Language19:2).
Use evidence
In the example above, the writers refer to several other sources when making their point. A literature review in this sense is just like any other academic research paper. Your interpretation of the available sources must be backed up with evidence to show that what you are saying is valid.
Be selective
Select only the most important points in each source to highlight in the review. The type of information you choose to mention should relate directly to the review’s focus, whether it is thematic, methodological, or chronological.
Use quotes sparingly
Falk and Mills do not use any direct quotes. That is because the survey nature of the literature review does not allow for in-depth discussion or detailed quotes from the text. Some short quotes here and there are okay, though, if you want to emphasize a point, or if what the author said just cannot be rewritten in your own words. Notice that Falk and Mills do quote certain terms that were coined by the author, not common knowledge, or taken directly from the study. But if you find yourself wanting to put in more quotes, check with your instructor.
Summarize and synthesize
Remember to summarize and synthesize your sources within each paragraph as well as throughout the review. The authors here recapitulate important features of Hamilton’s study, but then synthesize it by rephrasing the study’s significance and relating it to their own work.
Keep your own voice
While the literature review presents others’ ideas, your voice (the writer’s) should remain front and center. Notice that Falk and Mills weave references to other sources into their own text, but they still maintain their own voice by starting and ending the paragraph with their own ideas and their own words. The sources support what Falk and Mills are saying.
Use caution when paraphrasing
When paraphrasing a source that is not your own, be sure to represent the author’s information or opinions accurately and in your own words. In the preceding example, Falk and Mills either directly refer in the text to the author of their source, such as Hamilton, or they provide ample notation in the text when the ideas they are mentioning are not their own, for example, Gastil’s. For more information, please see our handout on plagiarism .
Revise, revise, revise
Draft in hand? Now you’re ready to revise. Spending a lot of time revising is a wise idea, because your main objective is to present the material, not the argument. So check over your review again to make sure it follows the assignment and/or your outline. Then, just as you would for most other academic forms of writing, rewrite or rework the language of your review so that you’ve presented your information in the most concise manner possible. Be sure to use terminology familiar to your audience; get rid of unnecessary jargon or slang. Finally, double check that you’ve documented your sources and formatted the review appropriately for your discipline. For tips on the revising and editing process, see our handout on revising drafts .
Works consulted
We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.
Anson, Chris M., and Robert A. Schwegler. 2010. The Longman Handbook for Writers and Readers , 6th ed. New York: Longman.
Jones, Robert, Patrick Bizzaro, and Cynthia Selfe. 1997. The Harcourt Brace Guide to Writing in the Disciplines . New York: Harcourt Brace.
Lamb, Sandra E. 1998. How to Write It: A Complete Guide to Everything You’ll Ever Write . Berkeley: Ten Speed Press.
Rosen, Leonard J., and Laurence Behrens. 2003. The Allyn & Bacon Handbook , 5th ed. New York: Longman.
Troyka, Lynn Quittman, and Doug Hesse. 2016. Simon and Schuster Handbook for Writers , 11th ed. London: Pearson.
You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill
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How To Structure Your Literature Review
3 options to help structure your chapter.
By: Amy Rommelspacher (PhD) | Reviewer: Dr Eunice Rautenbach | November 2020 (Updated May 2023)
Writing the literature review chapter can seem pretty daunting when you’re piecing together your dissertation or thesis. As we’ve discussed before , a good literature review needs to achieve a few very important objectives – it should:
- Demonstrate your knowledge of the research topic
- Identify the gaps in the literature and show how your research links to these
- Provide the foundation for your conceptual framework (if you have one)
- Inform your own methodology and research design
To achieve this, your literature review needs a well-thought-out structure . Get the structure of your literature review chapter wrong and you’ll struggle to achieve these objectives. Don’t worry though – in this post, we’ll look at how to structure your literature review for maximum impact (and marks!).
![lit-review-chapter-function The function of the lit review](https://gradcoach.com/wp-content/uploads/lit-review-chapter-function.png)
But wait – is this the right time?
Deciding on the structure of your literature review should come towards the end of the literature review process – after you have collected and digested the literature, but before you start writing the chapter.
In other words, you need to first develop a rich understanding of the literature before you even attempt to map out a structure. There’s no use trying to develop a structure before you’ve fully wrapped your head around the existing research.
Equally importantly, you need to have a structure in place before you start writing , or your literature review will most likely end up a rambling, disjointed mess.
Importantly, don’t feel that once you’ve defined a structure you can’t iterate on it. It’s perfectly natural to adjust as you engage in the writing process. As we’ve discussed before , writing is a way of developing your thinking, so it’s quite common for your thinking to change – and therefore, for your chapter structure to change – as you write.
Need a helping hand?
Like any other chapter in your thesis or dissertation, your literature review needs to have a clear, logical structure. At a minimum, it should have three essential components – an introduction , a body and a conclusion .
Let’s take a closer look at each of these.
1: The Introduction Section
Just like any good introduction, the introduction section of your literature review should introduce the purpose and layout (organisation) of the chapter. In other words, your introduction needs to give the reader a taste of what’s to come, and how you’re going to lay that out. Essentially, you should provide the reader with a high-level roadmap of your chapter to give them a taste of the journey that lies ahead.
Here’s an example of the layout visualised in a literature review introduction:
![literature-review-structure-example-700 Example of literature review outline structure](https://gradcoach.com/wp-content/uploads/literature-review-structure-example-700.jpg)
Your introduction should also outline your topic (including any tricky terminology or jargon) and provide an explanation of the scope of your literature review – in other words, what you will and won’t be covering (the delimitations ). This helps ringfence your review and achieve a clear focus . The clearer and narrower your focus, the deeper you can dive into the topic (which is typically where the magic lies).
Depending on the nature of your project, you could also present your stance or point of view at this stage. In other words, after grappling with the literature you’ll have an opinion about what the trends and concerns are in the field as well as what’s lacking. The introduction section can then present these ideas so that it is clear to examiners that you’re aware of how your research connects with existing knowledge .
![lit-review-webinar-2024 Free Webinar: Literature Review 101](https://gradcoach.com/wp-content/uploads/lit-review-webinar-2024.png)
2: The Body Section
The body of your literature review is the centre of your work. This is where you’ll present, analyse, evaluate and synthesise the existing research. In other words, this is where you’re going to earn (or lose) the most marks. Therefore, it’s important to carefully think about how you will organise your discussion to present it in a clear way.
The body of your literature review should do just as the description of this chapter suggests. It should “review” the literature – in other words, identify, analyse, and synthesise it. So, when thinking about structuring your literature review, you need to think about which structural approach will provide the best “review” for your specific type of research and objectives (we’ll get to this shortly).
There are (broadly speaking) three options for organising your literature review.
![literature-review-body The body section of your literature review is the where you'll present, analyse, evaluate and synthesise the existing research.](https://gradcoach.com/wp-content/uploads/literature-review-body.png)
Option 1: Chronological (according to date)
Organising the literature chronologically is one of the simplest ways to structure your literature review. You start with what was published first and work your way through the literature until you reach the work published most recently. Pretty straightforward.
The benefit of this option is that it makes it easy to discuss the developments and debates in the field as they emerged over time. Organising your literature chronologically also allows you to highlight how specific articles or pieces of work might have changed the course of the field – in other words, which research has had the most impact . Therefore, this approach is very useful when your research is aimed at understanding how the topic has unfolded over time and is often used by scholars in the field of history. That said, this approach can be utilised by anyone that wants to explore change over time .
![lit-review-chrono-structure Adopting the chronological structure allows you to discuss the developments and debates in the field as they emerged over time.](https://gradcoach.com/wp-content/uploads/lit-review-chrono-structure.png)
For example , if a student of politics is investigating how the understanding of democracy has evolved over time, they could use the chronological approach to provide a narrative that demonstrates how this understanding has changed through the ages.
Here are some questions you can ask yourself to help you structure your literature review chronologically.
- What is the earliest literature published relating to this topic?
- How has the field changed over time? Why?
- What are the most recent discoveries/theories?
In some ways, chronology plays a part whichever way you decide to structure your literature review, because you will always, to a certain extent, be analysing how the literature has developed. However, with the chronological approach, the emphasis is very firmly on how the discussion has evolved over time , as opposed to how all the literature links together (which we’ll discuss next ).
Option 2: Thematic (grouped by theme)
The thematic approach to structuring a literature review means organising your literature by theme or category – for example, by independent variables (i.e. factors that have an impact on a specific outcome).
As you’ve been collecting and synthesising literature , you’ll likely have started seeing some themes or patterns emerging. You can then use these themes or patterns as a structure for your body discussion. The thematic approach is the most common approach and is useful for structuring literature reviews in most fields.
For example, if you were researching which factors contributed towards people trusting an organisation, you might find themes such as consumers’ perceptions of an organisation’s competence, benevolence and integrity. Structuring your literature review thematically would mean structuring your literature review’s body section to discuss each of these themes, one section at a time.
![lit-review-theme-structure The thematic structure allows you to organise your literature by theme or category – e.g. by independent variables.](https://gradcoach.com/wp-content/uploads/lit-review-theme-structure.png)
Here are some questions to ask yourself when structuring your literature review by themes:
- Are there any patterns that have come to light in the literature?
- What are the central themes and categories used by the researchers?
- Do I have enough evidence of these themes?
PS – you can see an example of a thematically structured literature review in our literature review sample walkthrough video here.
Option 3: Methodological
The methodological option is a way of structuring your literature review by the research methodologies used . In other words, organising your discussion based on the angle from which each piece of research was approached – for example, qualitative , quantitative or mixed methodologies.
Structuring your literature review by methodology can be useful if you are drawing research from a variety of disciplines and are critiquing different methodologies. The point of this approach is to question how existing research has been conducted, as opposed to what the conclusions and/or findings the research were.
![lit-review-method-structure The methodological structure allows you to organise your chapter by the analysis method used - e.g. qual, quant or mixed.](https://gradcoach.com/wp-content/uploads/lit-review-method-structure.png)
For example, a sociologist might centre their research around critiquing specific fieldwork practices. Their literature review will then be a summary of the fieldwork methodologies used by different studies.
Here are some questions you can ask yourself when structuring your literature review according to methodology:
- Which methodologies have been utilised in this field?
- Which methodology is the most popular (and why)?
- What are the strengths and weaknesses of the various methodologies?
- How can the existing methodologies inform my own methodology?
3: The Conclusion Section
Once you’ve completed the body section of your literature review using one of the structural approaches we discussed above, you’ll need to “wrap up” your literature review and pull all the pieces together to set the direction for the rest of your dissertation or thesis.
The conclusion is where you’ll present the key findings of your literature review. In this section, you should emphasise the research that is especially important to your research questions and highlight the gaps that exist in the literature. Based on this, you need to make it clear what you will add to the literature – in other words, justify your own research by showing how it will help fill one or more of the gaps you just identified.
Last but not least, if it’s your intention to develop a conceptual framework for your dissertation or thesis, the conclusion section is a good place to present this.
![lit-review-structure-conclusion In the conclusion section, you’ll need to present the key findings of your literature review and highlight the gaps that exist in the literature. Based on this, you'll need to make it clear what your study will add to the literature.](https://gradcoach.com/wp-content/uploads/lit-review-structure-conclusion.png)
Example: Thematically Structured Review
In the video below, we unpack a literature review chapter so that you can see an example of a thematically structure review in practice.
Let’s Recap
In this article, we’ve discussed how to structure your literature review for maximum impact. Here’s a quick recap of what you need to keep in mind when deciding on your literature review structure:
- Just like other chapters, your literature review needs a clear introduction , body and conclusion .
- The introduction section should provide an overview of what you will discuss in your literature review.
- The body section of your literature review can be organised by chronology , theme or methodology . The right structural approach depends on what you’re trying to achieve with your research.
- The conclusion section should draw together the key findings of your literature review and link them to your research questions.
If you’re ready to get started, be sure to download our free literature review template to fast-track your chapter outline.
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Psst… there’s more!
This post is an extract from our bestselling short course, Literature Review Bootcamp . If you want to work smart, you don't want to miss this .
27 Comments
Great work. This is exactly what I was looking for and helps a lot together with your previous post on literature review. One last thing is missing: a link to a great literature chapter of an journal article (maybe with comments of the different sections in this review chapter). Do you know any great literature review chapters?
I agree with you Marin… A great piece
I agree with Marin. This would be quite helpful if you annotate a nicely structured literature from previously published research articles.
Awesome article for my research.
I thank you immensely for this wonderful guide
It is indeed thought and supportive work for the futurist researcher and students
Very educative and good time to get guide. Thank you
Great work, very insightful. Thank you.
Thanks for this wonderful presentation. My question is that do I put all the variables into a single conceptual framework or each hypothesis will have it own conceptual framework?
Thank you very much, very helpful
This is very educative and precise . Thank you very much for dropping this kind of write up .
Pheeww, so damn helpful, thank you for this informative piece.
I’m doing a research project topic ; stool analysis for parasitic worm (enteric) worm, how do I structure it, thanks.
comprehensive explanation. Help us by pasting the URL of some good “literature review” for better understanding.
great piece. thanks for the awesome explanation. it is really worth sharing. I have a little question, if anyone can help me out, which of the options in the body of literature can be best fit if you are writing an architectural thesis that deals with design?
I am doing a research on nanofluids how can l structure it?
Beautifully clear.nThank you!
Lucid! Thankyou!
Brilliant work, well understood, many thanks
I like how this was so clear with simple language 😊😊 thank you so much 😊 for these information 😊
Insightful. I was struggling to come up with a sensible literature review but this has been really helpful. Thank you!
You have given thought-provoking information about the review of the literature.
Thank you. It has made my own research better and to impart your work to students I teach
I learnt a lot from this teaching. It’s a great piece.
I am doing research on EFL teacher motivation for his/her job. How Can I structure it? Is there any detailed template, additional to this?
You are so cool! I do not think I’ve read through something like this before. So nice to find somebody with some genuine thoughts on this issue. Seriously.. thank you for starting this up. This site is one thing that is required on the internet, someone with a little originality!
I’m asked to do conceptual, theoretical and empirical literature, and i just don’t know how to structure it
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What is a literature review? [with examples]
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What is a literature review?
The purpose of a literature review, how to write a literature review, the format of a literature review, general formatting rules, the length of a literature review, literature review examples, frequently asked questions about literature reviews, related articles.
A literature review is an assessment of the sources in a chosen topic of research.
In a literature review, you’re expected to report on the existing scholarly conversation, without adding new contributions.
If you are currently writing one, you've come to the right place. In the following paragraphs, we will explain:
- the objective of a literature review
- how to write a literature review
- the basic format of a literature review
Tip: It’s not always mandatory to add a literature review in a paper. Theses and dissertations often include them, whereas research papers may not. Make sure to consult with your instructor for exact requirements.
The four main objectives of a literature review are:
- Studying the references of your research area
- Summarizing the main arguments
- Identifying current gaps, stances, and issues
- Presenting all of the above in a text
Ultimately, the main goal of a literature review is to provide the researcher with sufficient knowledge about the topic in question so that they can eventually make an intervention.
The format of a literature review is fairly standard. It includes an:
- introduction that briefly introduces the main topic
- body that includes the main discussion of the key arguments
- conclusion that highlights the gaps and issues of the literature
➡️ Take a look at our guide on how to write a literature review to learn more about how to structure a literature review.
First of all, a literature review should have its own labeled section. You should indicate clearly in the table of contents where the literature can be found, and you should label this section as “Literature Review.”
➡️ For more information on writing a thesis, visit our guide on how to structure a thesis .
There is no set amount of words for a literature review, so the length depends on the research. If you are working with a large amount of sources, it will be long. If your paper does not depend entirely on references, it will be short.
Take a look at these three theses featuring great literature reviews:
- School-Based Speech-Language Pathologist's Perceptions of Sensory Food Aversions in Children [ PDF , see page 20]
- Who's Writing What We Read: Authorship in Criminological Research [ PDF , see page 4]
- A Phenomenological Study of the Lived Experience of Online Instructors of Theological Reflection at Christian Institutions Accredited by the Association of Theological Schools [ PDF , see page 56]
Literature reviews are most commonly found in theses and dissertations. However, you find them in research papers as well.
There is no set amount of words for a literature review, so the length depends on the research. If you are working with a large amount of sources, then it will be long. If your paper does not depend entirely on references, then it will be short.
No. A literature review should have its own independent section. You should indicate clearly in the table of contents where the literature review can be found, and label this section as “Literature Review.”
The main goal of a literature review is to provide the researcher with sufficient knowledge about the topic in question so that they can eventually make an intervention.
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Writing a Literature Review: General Guidelines
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Table of contents
- 1 What Is a Literature Review?
- 2 What Is the Purpose of a Literature Review?
- 3 Steps in the Literature Review Process
- 4.1 Chronological
- 4.2 Thematic
- 4.3 Methodological
- 4.4 Theoretical
- 5 Literature Review Outline
- 6 Literature Review: Writing Tips
Writing a literature review for a research paper is an important stage in the academic research process. It entails doing a critical review of existing literature to provide a comprehensive overview of current knowledge on a certain issue. In this article, we will walk you through the important processes for writing an excellent literature review. We’ll discuss how to discover relevant literature, combine findings, and arrange your review to provide clear insights. Whether you’re a seasoned researcher or a first-time writer, this guide will give you essential advice and tactics for improving the quality and impact of your literature reviews.
What Is a Literature Review?
A literature review is a survey of key scholarly sources to do with a particular topic. It lists a number of important and relevant pieces of writing and, in doing so, gives the reader a summary of the topic’s current knowledge and debates. When writing a literature review, a student should do more than just summarise each individual source. They should analyze them closely and compare them with one another.
A key part of academic writing involves understanding what has been said and debated about the chosen topic. Once a student has done their research, they’re in a better place to write their research paper and put their point across. A good literature review should let the reader know what the salient points from the student’s research are.
What Is the Purpose of a Literature Review?
The purpose of a literature review is to show the reader what research has been carried out on the chosen topic in the past. When writing one, you’re aiming to bring the reader up to speed with other people’s research before sharing your own findings. You should summarise where the topic’s at right now before building on it with your research.
Another important purpose is to give more weight to a student’s key arguments. By listing and comparing some of the key sources, a student can give context to the main points in their research paper; they can even fill any gaps in certain areas that others haven’t yet managed to fill.
If you want to know how to write a literature review in a research paper, carry on reading. We’ll run you through the process of putting one together, and we’ll talk about some of the different approaches you can take in writing one.
Steps in the Literature Review Process
A literature review can make a Ph.D. dissertation, or any other kind of research paper more convincing. For a review to be effective, it should be detailed and have substance but without overdoing it; in other words, it should be concise.
If you’re not sure how to write a literature review for a research paper, we’ll show you how in this section. Here are the main steps to take:
- Decide on your topic Your topic is the base on which you build your research. It also determines what research you carry out.
- Search for sources to include The sources you look at for your research paper should be authoritative and relevant. They should be scholarly in nature, though not all of them will be.
- Determine which ones are the most useful Look through your sources and think about how much each one adds to both the topic you’re exploring and the research you’re carrying out. Including all sources isn’t practical, so only choose the most appropriate and fitting ones.
- Identify where the research is currently at By reading other people’s research, you can get an idea of what the current thoughts and debates relating to your chosen topic area.
- Come up with a structure Literature reviews have quite simple structures. More information on these is given below. Think about how you want to present yours and how you’re going to arrange your findings.
- Write your literature review A well-written literature review gives the reader all the necessary information about each of the sources. It clearly explains how the sources are connected and what they contribute to the chosen topic.
It’s a good idea to come up with headings and subheadings and go from there. These are both important, and we’ll talk about them in more detail later on. During the planning process, they can help you come up with a definitive structure for your literature review and consolidate your thoughts.
You may want to pay someone to write a literature review for you. Many people who are struggling with literature reviews do this. They don’t hand in the work that someone else has done for them. Instead, they read through the other person’s work to get ideas and inspiration. Doing this can help people write their own literature review much more effectively.
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How to Structure a Literature Review
For this section, we’ll look at how to write a literature review. We’ll focus on the different approaches you can take according to the type of research you’re doing and how you wish to present it.
Chronological
Listing your sources in chronological order is perhaps the simplest approach to take. However, make sure you don’t just list the sources and summarise them. You should still try to establish some sort of connection between them. Highlight movements, patterns, and new ideas. Show the reader how scholarship on the topic has changed over time. You could even organize your sources into broad historical periods and have these as subheadings in the literature review, for example.
When writing a thematic literature review , you should organize your sources by theme. You should consider this approach if you’ve found multiple themes during your research. Create literature review subheadings for each theme that stands out to you. If you go for a thematic style, think about what your RRL subtopics are and what themes you would use to organize them.
Methodological
A methodological literature review is one whose sources involve the use of different research methods . You could have one source that’s numerical and involves graphs and statistics, for example, and another that’s entirely made up of written text. The subheadings in a literature review that’s methodological could focus on different types of research, focusing not so much on what has been researched but how it’s been researched. As a literature review subheadings example, you could therefore have one subheading for literary sources, another for numerical/graph-based data, and so on.
Theoretical
With a theoretical approach, the focus is on the body of theories relating to the topic that’s being discussed. The aim is to determine what theories there currently are, how they relate to one another, and how much they’ve been looked into.
These are just some of the different ways you can go about writing a literature review. The approach you take will depend on the nature of your review and the topic you’re looking at.
Writing a literature review can be an intimidating task to tackle, especially if you are not familiar with the literature in the field. Fortunately, there is a paper writing service online that can help you create an outstanding literature review in no time. Our service is helpful for students, researchers, and others who need to compile a comprehensive and informative literature review.
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Literature Review Outline
Writing a good outline for a literature review is important for your research paper. It helps you organize your thoughts and ideas and gives you a clear direction for the writing process.
An outline is not a formal document but rather an informal guide to assist you in organizing the information you want to include in your paper. The outline should be written in paragraph form, with each paragraph representing one major idea that will be expanded upon in subsequent paragraphs of the paper.
The main purpose of writing an outline is so that you can organize all of your sources in a way that will help you write a clear, concise essay. You just want to throw together quotes and facts without any order or reason. This will make it hard for the reader to follow along with what you are saying and make it appear that you have no idea what you’re talking about. This can result in a low grade for your paper and make it difficult for them to understand what is happening within the text.
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- Introduction The introduction should include a brief summary of the literature that is being reviewed, including the general topic and your specific focus. You should also provide some background information on the topic to help the reader understand why it is important. You should not include any citations in this section, because you will do that later in the paper.
- Body The body is where you provide an overview of all the sources or literature, you have used for your paper. You should include an introduction to each source and a brief summary of what was found in each source. In addition to providing summaries, you should also describe how each source relates to your research question or hypothesis and then relate them back to each other if they are similar enough to be compared. Finally, you should explain how each source relates to one another in addition to explaining how they relate to your research question or hypothesis.
- Conclusion The conclusion should summarize your arguments throughout the paper and then tie all of these things together into one coherent argument that proves or disproves your hypothesis or research question in relation to other sources discussed throughout this paper (and/or).
Writing a literature review is an integral part of a successful research article or dissertation, as it helps to synthesize and connect the existing body of knowledge. To write your lit review relevantly, it is important to ensure that you include new information when constructing your review and connect existing ideas and themes. A useful literature review outline can provide a structure for expressing your views, allowing you to connect and organize your ideas consistently and effectively.
Literature Review: Writing Tips
When writing a literature review, it’s important to include all of the information your assignment requires. Sometimes, instructors will give you specific guidelines for how long your literature review should be and how many sources it needs to include. If they don’t, however, you’ll need to decide what works best for your situation.
A literature review outline will be the foundation of your paper. It will tell you what information is important and how to write it cohesively and logically. When writing, it’s important to only include facts backed up by evidence. This means that if you are writing about any research topic, there must be at least one piece of published work that backs up each claim or opinion you present.
If there isn’t a source supporting your writing, don’t put it in because it makes your paper seem like speculation or opinion rather than fact-based knowledge about the issue at hand. Another tip for writers is to write clearly and concisely so that readers can understand what they are reading quickly without having any difficulty following along from one point to another throughout the entire essay (or book).
Readers may get bored very quickly if they feel like they have to struggle through something too much before getting into where things go next. Therefore, proper grammar usage should also be kept while doing this type as well, so there are no mistakes left behind after editing later down the line during the publishing stage itself.
The following are the most important tips for writing a literature review:
- Make sure that each paragraph covers a single subject or idea.
- Start with a thesis statement, which should sum up the paper’s main idea in one sentence.
- Write each paragraph in a way that flows from one point to another logically and coherently.
- Include quotes and paraphrases from sources you have read in order to support your arguments and conclusions.
- Make sure that you use credible sources as evidence for your claims and arguments in your paper.
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As well as learning how to write a literature review for a research paper, you’ll learn to be more productive and use your time more wisely. Writing services help you put together literature reviews more efficiently. They give you the opportunity to work with an experienced writer who can offer tips in writing RRL, help you with literature review formatting, and more. For example, you can even get things like literature review headings and subheadings so you can see how best to write your headings.
Remember that while the literature review isn’t the main part of a research assignment, it’s still significant. It’s important that you write it as best you can so that your research has more backing and will be taken more seriously.
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How to Write a Literature Review: Six Steps to Get You from Start to Finish
Writing-a-literature-review-six-steps-to-get-you-from-start-to-finish.
Tanya Golash-Boza, Associate Professor of Sociology, University of California
February 03, 2022
Writing a literature review is often the most daunting part of writing an article, book, thesis, or dissertation. “The literature” seems (and often is) massive. I have found it helpful to be as systematic as possible when completing this gargantuan task.
Sonja Foss and William Walters* describe an efficient and effective way of writing a literature review. Their system provides an excellent guide for getting through the massive amounts of literature for any purpose: in a dissertation, an M.A. thesis, or preparing a research article for publication in any field of study. Below is a summary of the steps they outline as well as a step-by-step method for writing a literature review.
How to Write a Literature Review
Step One: Decide on your areas of research:
Before you begin to search for articles or books, decide beforehand what areas you are going to research. Make sure that you only get articles and books in those areas, even if you come across fascinating books in other areas. A literature review I am currently working on, for example, explores barriers to higher education for undocumented students.
Step Two: Search for the literature:
Conduct a comprehensive bibliographic search of books and articles in your area. Read the abstracts online and download and/or print those articles that pertain to your area of research. Find books in the library that are relevant and check them out. Set a specific time frame for how long you will search. It should not take more than two or three dedicated sessions.
Step Three: Find relevant excerpts in your books and articles:
Skim the contents of each book and article and look specifically for these five things:
1. Claims, conclusions, and findings about the constructs you are investigating
2. Definitions of terms
3. Calls for follow-up studies relevant to your project
4. Gaps you notice in the literature
5. Disagreement about the constructs you are investigating
When you find any of these five things, type the relevant excerpt directly into a Word document. Don’t summarize, as summarizing takes longer than simply typing the excerpt. Make sure to note the name of the author and the page number following each excerpt. Do this for each article and book that you have in your stack of literature. When you are done, print out your excerpts.
Step Four: Code the literature:
Get out a pair of scissors and cut each excerpt out. Now, sort the pieces of paper into similar topics. Figure out what the main themes are. Place each excerpt into a themed pile. Make sure each note goes into a pile. If there are excerpts that you can’t figure out where they belong, separate those and go over them again at the end to see if you need new categories. When you finish, place each stack of notes into an envelope labeled with the name of the theme.
Step Five: Create Your Conceptual Schema:
Type, in large font, the name of each of your coded themes. Print this out, and cut the titles into individual slips of paper. Take the slips of paper to a table or large workspace and figure out the best way to organize them. Are there ideas that go together or that are in dialogue with each other? Are there ideas that contradict each other? Move around the slips of paper until you come up with a way of organizing the codes that makes sense. Write the conceptual schema down before you forget or someone cleans up your slips of paper.
Step Six: Begin to Write Your Literature Review:
Choose any section of your conceptual schema to begin with. You can begin anywhere, because you already know the order. Find the envelope with the excerpts in them and lay them on the table in front of you. Figure out a mini-conceptual schema based on that theme by grouping together those excerpts that say the same thing. Use that mini-conceptual schema to write up your literature review based on the excerpts that you have in front of you. Don’t forget to include the citations as you write, so as not to lose track of who said what. Repeat this for each section of your literature review.
Once you complete these six steps, you will have a complete draft of your literature review. The great thing about this process is that it breaks down into manageable steps something that seems enormous: writing a literature review.
I think that Foss and Walter’s system for writing the literature review is ideal for a dissertation, because a Ph.D. candidate has already read widely in his or her field through graduate seminars and comprehensive exams.
It may be more challenging for M.A. students, unless you are already familiar with the literature. It is always hard to figure out how much you need to read for deep meaning, and how much you just need to know what others have said. That balance will depend on how much you already know.
For people writing literature reviews for articles or books, this system also could work, especially when you are writing in a field with which you are already familiar. The mere fact of having a system can make the literature review seem much less daunting, so I recommend this system for anyone who feels overwhelmed by the prospect of writing a literature review.
*Destination Dissertation: A Traveler's Guide to a Done Dissertation
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Conduct a literature review
What is a literature review.
A literature review is a summary of the published work in a field of study. This can be a section of a larger paper or article, or can be the focus of an entire paper. Literature reviews show that you have examined the breadth of knowledge and can justify your thesis or research questions. They are also valuable tools for other researchers who need to find a summary of that field of knowledge.
Unlike an annotated bibliography, which is a list of sources with short descriptions, a literature review synthesizes sources into a summary that has a thesis or statement of purpose—stated or implied—at its core.
How do I write a literature review?
Step 1: define your research scope.
- What is the specific research question that your literature review helps to define?
- Are there a maximum or minimum number of sources that your review should include?
Ask us if you have questions about refining your topic, search methods, writing tips, or citation management.
Step 2: Identify the literature
Start by searching broadly. Literature for your review will typically be acquired through scholarly books, journal articles, and/or dissertations. Develop an understanding of what is out there, what terms are accurate and helpful, etc., and keep track of all of it with citation management tools . If you need help figuring out key terms and where to search, ask us .
Use citation searching to track how scholars interact with, and build upon, previous research:
- Mine the references cited section of each relevant source for additional key sources
- Use Google Scholar or Scopus to find other sources that have cited a particular work
Step 3: Critically analyze the literature
Key to your literature review is a critical analysis of the literature collected around your topic. The analysis will explore relationships, major themes, and any critical gaps in the research expressed in the work. Read and summarize each source with an eye toward analyzing authority, currency, coverage, methodology, and relationship to other works. The University of Toronto's Writing Center provides a comprehensive list of questions you can use to analyze your sources.
Step 4: Categorize your resources
Divide the available resources that pertain to your research into categories reflecting their roles in addressing your research question. Possible ways to categorize resources include organization by:
- methodology
- theoretical/philosophical approach
Regardless of the division, each category should be accompanied by thorough discussions and explanations of strengths and weaknesses, value to the overall survey, and comparisons with similar sources. You may have enough resources when:
- You've used multiple databases and other resources (web portals, repositories, etc.) to get a variety of perspectives on the research topic.
- The same citations are showing up in a variety of databases.
Additional resources
Undergraduate student resources.
- Literature Review Handout (University of North Carolina at Chapel Hill)
- Learn how to write a review of literature (University of Wisconsin-Madison)
Graduate student and faculty resources
- Information Research Strategies (University of Arizona)
- Literature Reviews: An Overview for Graduate Students (NC State University)
- Oliver, P. (2012). Succeeding with Your Literature Review: A Handbook for Students [ebook]
- Machi, L. A. & McEvoy, B. T. (2016). The Literature Review: Six Steps to Success [ebook]
- Graustein, J. S. (2012). How to Write an Exceptional Thesis or Dissertation: A Step-by-Step Guide from Proposal to Successful Defense [ebook]
- Thomas, R. M. & Brubaker, D. L. (2008). Theses and Dissertations: A Guide to Planning, Research, and Writing
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How do I Write a Literature Review?: #5 Writing the Review
- Step #1: Choosing a Topic
- Step #2: Finding Information
- Step #3: Evaluating Content
- Step #4: Synthesizing Content
- #5 Writing the Review
- Citing Your Sources
WRITING THE REVIEW
You've done the research and now you're ready to put your findings down on paper. When preparing to write your review, first consider how will you organize your review.
The actual review generally has 5 components:
Abstract - An abstract is a summary of your literature review. It is made up of the following parts:
- A contextual sentence about your motivation behind your research topic
- Your thesis statement
- A descriptive statement about the types of literature used in the review
- Summarize your findings
- Conclusion(s) based upon your findings
Introduction : Like a typical research paper introduction, provide the reader with a quick idea of the topic of the literature review:
- Define or identify the general topic, issue, or area of concern. This provides the reader with context for reviewing the literature.
- Identify related trends in what has already been published about the topic; or conflicts in theory, methodology, evidence, and conclusions; or gaps in research and scholarship; or a single problem or new perspective of immediate interest.
- Establish your reason (point of view) for reviewing the literature; explain the criteria to be used in analyzing and comparing literature and the organization of the review (sequence); and, when necessary, state why certain literature is or is not included (scope) -
Body : The body of a literature review contains your discussion of sources and can be organized in 3 ways-
- Chronological - by publication or by trend
- Thematic - organized around a topic or issue, rather than the progression of time
- Methodical - the focusing factor usually does not have to do with the content of the material. Instead, it focuses on the "methods" of the literature's researcher or writer that you are reviewing
You may also want to include a section on "questions for further research" and discuss what questions the review has sparked about the topic/field or offer suggestions for future studies/examinations that build on your current findings.
Conclusion : In the conclusion, you should:
Conclude your paper by providing your reader with some perspective on the relationship between your literature review's specific topic and how it's related to it's parent discipline, scientific endeavor, or profession.
Bibliography : Since a literature review is composed of pieces of research, it is very important that your correctly cite the literature you are reviewing, both in the reviews body as well as in a bibliography/works cited. To learn more about different citation styles, visit the " Citing Your Sources " tab.
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How to Write a Literature Review for a Research Paper
Last Updated: April 16, 2024 Fact Checked
This article was co-authored by Annaliese Dunne . Annaliese Dunne is a Middle School English Teacher. With over 10 years of teaching experience, her areas of expertise include writing and grammar instruction, as well as teaching reading comprehension. She is also an experienced freelance writer. She received her Bachelor's degree in English. There are 8 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 38,240 times.
You’re all set to write your first research paper in college, and then your professor says that you need to write a literature review for the paper. If you’ve never even heard of one of these before, don’t panic! It’s a very common assignment and all students have to write their first one eventually. A literature, or lit, review is basically a statement on where the field that you’re studying currently stands. It requires researching key publications within a field and presenting those arguments in a concise, clear section of your paper. It takes some time and research, but once you know what you’re doing, you can tackle the lit review and get on with the rest of your paper.
Evaluating Your Sources
![where do you put a literature review in a research paper Step 1 Locate the most recent work in the field.](https://www.wikihow.com/images/thumb/1/1d/Write-a-Literature-Review-for-a-Research-Paper-Step-1.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-1.jpg)
- Your library search engine is the best source for recent or classic work. If your topic is the effect of racism on hiring, try searching keywords like “employment,” “discrimination,” “racism,” and “United States.”
- The librarians in your library are there to help, so don’t hesitate to ask if you need any assistance finding work to read.
- Remember that newer publications aren’t necessarily better than older ones. But it’s important to find new work so your review is up-to-date.
- You could also check the bibliographies in the work you're already using or ask your professor for reading suggestions if you need more ideas. [2] X Trustworthy Source University of North Carolina Writing Center UNC's on-campus and online instructional service that provides assistance to students, faculty, and others during the writing process Go to source
![where do you put a literature review in a research paper Step 2 Identify the main argument of each work you read.](https://www.wikihow.com/images/thumb/8/8a/Write-a-Literature-Review-for-a-Research-Paper-Step-2.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-2.jpg)
- Try to state each argument as simply as possible. Sum up the author’s point in a sentence, if you can.
- In most cases, you won’t have to read the entire work to understand the author’s argument. Some state their arguments at the beginning very clearly. Only read enough so you can identify that argument so you don’t make too much work for yourself.
![where do you put a literature review in a research paper Step 3 Critique the sources and evidence that each author uses.](https://www.wikihow.com/images/thumb/8/8a/Write-a-Literature-Review-for-a-Research-Paper-Step-3.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-3.jpg)
- One way you could evaluate a source on employment discrimination is by looking at the evidence. One source might use mostly newspaper articles for evidence, which aren’t always reliable. Another might use statistical data and government studies, which are usually more reliable, and therefore this source is more convincing.
- The evidence that the author uses should also be easy to find, and they should provide clear citations and links if possible. If you can't track down the sources the author is using, then their argument is suspect. [5] X Research source
![where do you put a literature review in a research paper Step 4 Examine any personal bias the author may have.](https://www.wikihow.com/images/thumb/5/59/Write-a-Literature-Review-for-a-Research-Paper-Step-4.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-4.jpg)
- If you’re researching music in 20th-century Europe, for example, a musician might say that they had a huge impact on the scene. The fact that this person was a musician at the time could make their opinion biased.
- Remember that all people have bias, so a biased work isn't necessarily useless. But it's something to note in your lit review to show that you've evaluated all your sources carefully.
- Personal bias is another important part of evaluating sources.
![where do you put a literature review in a research paper Step 5 Summarize each source so writing your review is easier.](https://www.wikihow.com/images/thumb/3/3f/Write-a-Literature-Review-for-a-Research-Paper-Step-5.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-5.jpg)
- It’s best to take notes while you’re reading and jot down each author’s argument, sources, bias, and your own thoughts on the work. This keeps all of your information in a nice, compact place.
![where do you put a literature review in a research paper Step 6 Group all of your sources into categories.](https://www.wikihow.com/images/thumb/1/18/Write-a-Literature-Review-for-a-Research-Paper-Step-6.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-6.jpg)
- Sticking with the employment discrimination topic, you might come across some authors who say this is a big problem, and others who don’t think it’s so severe. You might also see some authors acknowledging discrimination but attributing it to different causes.
Organizing Your Review
![where do you put a literature review in a research paper Step 1 Write your lit review in essay-format.](https://www.wikihow.com/images/thumb/4/43/Write-a-Literature-Review-for-a-Research-Paper-Step-7.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-7.jpg)
- If you need help organizing your thoughts, you could always start with a bullet-point list. This is great to get started. However, you'll need to polish this into an actual essay.
- Generally the lit review doesn't need a different format from the rest of the paper, so don't change anything unless your professor tells you to.
![where do you put a literature review in a research paper Step 2 Place the lit review between the introduction and body of your paper.](https://www.wikihow.com/images/thumb/9/95/Write-a-Literature-Review-for-a-Research-Paper-Step-8.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-8.jpg)
- Use section headings like "Introduction" and "Literature Review" to keep yourself organized. You can leave these in if your professor tells you it's okay.
- Some professors may give you a specific outline to base your review or paper around. Always follow their instructions so you get full credit.
![where do you put a literature review in a research paper Step 3 Structure your review chronologically if you want to show change over time.](https://www.wikihow.com/images/thumb/2/22/Write-a-Literature-Review-for-a-Research-Paper-Step-9.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-9.jpg)
- Try to make some larger statements as you write chronologically. You could say, “Prior to the 1950s, scholars didn’t take employment discrimination seriously. In the 1960s and 1970s, new work emerged arguing that it was a major problem that millions of people experience.” This helps move your reader along.
- If you can, tie a chronological lit review to larger historical developments. For example, you could note that the Civil Rights Movement in the 1960s led scholars to analyze discrimination more closely.
![where do you put a literature review in a research paper Step 4 Break down the review by theme if the field is currently divided.](https://www.wikihow.com/images/thumb/e/eb/Write-a-Literature-Review-for-a-Research-Paper-Step-10.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-10.jpg)
- A thematic approach might work better for medical or scientific topics, since there is often a lot of disagreement going on at the same time within these fields. Your topic could be different approaches to the treatment of cancer, with a section on each proposed treatment regimen.
- You could still work chronologically within a thematic organization. When you move on to a new theme, for example, start with the author who first introduced that concept or conclusion.
![where do you put a literature review in a research paper Step 5 Read some academic articles for ideas.](https://www.wikihow.com/images/thumb/d/d9/Write-a-Literature-Review-for-a-Research-Paper-Step-11.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-11.jpg)
- There are also systematic reviews, or article-length literature reviews that analyze all the relevant work in a topic. Journals periodically publish pieces like this. These can be great resources for more sources and ideas.
Writing the Review
![where do you put a literature review in a research paper Step 1 Make a broad statement about where the literature stands in your intro.](https://www.wikihow.com/images/thumb/6/64/Write-a-Literature-Review-for-a-Research-Paper-Step-12.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-12.jpg)
- Your research might show you that most writers agree that employment discrimination is a problem, but aren’t united on what the causes are. Your opening statement could be, “Scholars are in widespread agreement that African-Americans face discrimination on the job. However, they are divided on the causes. The most common explanations they give are racism among hiring managers, a lack of educational opportunity, and structural disadvantages that produce less past work experience.”
- Your statement doesn’t have to show agreement. It’s perfectly fine to say something like “Child psychologists are currently divided on how homework influences grade-schoolers’ development. Some see it as a crucial intellectual exercise, while others criticize it as busywork that has no real benefit.”
![where do you put a literature review in a research paper Step 2 Organize your body paragraphs around the themes that you identified.](https://www.wikihow.com/images/thumb/3/3e/Write-a-Literature-Review-for-a-Research-Paper-Step-13.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-13.jpg)
- If you're organizing your essay chronologically, you could break down paragraphs by decade. The first paragraph could explain how authors discussed a problem in the 1960s, then your second one moves to the 1970s, and so on.
- This also works if you're proceeding thematically. You could have a paragraph about authors who support one conclusion and another about authors who disagree.
![where do you put a literature review in a research paper Step 3 Provide key information about each source in your review.](https://www.wikihow.com/images/thumb/2/2c/Write-a-Literature-Review-for-a-Research-Paper-Step-14.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-14.jpg)
- Remember to show how each work fits in your main narrative as well. If it’s not clear why a work fits the theme you’ve placed it in, you might lose credit.
- Quotes are always good to demonstrate a point, but make sure you don’t overuse them. 1 or 2 quotes per work is plenty. Stick with your own words for the analysis.
![where do you put a literature review in a research paper Step 4 Critique the works to show what their shortcomings are.](https://www.wikihow.com/images/thumb/f/f7/Write-a-Literature-Review-for-a-Research-Paper-Step-15.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-15.jpg)
- You could say, “This author overall concludes that racism is not a major component of employment discrimination. This might be true on the job, but it ignores systemic racism, which could lead to disparate outcomes for those who experience it.”
- Be fair when you’re criticizing authors. They’ve probably researched the topic, and though you don’t agree with their conclusions, it’s not fair to act like they don’t know what they’re talking about.
![where do you put a literature review in a research paper Step 5 Conclude with some questions for further research.](https://www.wikihow.com/images/thumb/0/05/Write-a-Literature-Review-for-a-Research-Paper-Step-16.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-16.jpg)
- You can make suggestions no matter what the review shows. If the field is divided, you could say “We clearly need more research to solve these disagreements.” If a field is united, you could say “Perhaps some more diverse voices or perspectives could complicate this field and drive it in new directions.”
- If this lit review is part of a larger research paper, then conclude by stating how your research solves some of these problems.
![where do you put a literature review in a research paper Step 6 Stick with the length that your professor assigns.](https://www.wikihow.com/images/thumb/c/c3/Write-a-Literature-Review-for-a-Research-Paper-Step-17.jpg/v4-460px-Write-a-Literature-Review-for-a-Research-Paper-Step-17.jpg)
- For a 10-20-page paper, the lit review can be a few pages. Try not to go over 2-3 unless your professor tells you to.
- In an MA thesis or PhD dissertation, the lit review might make up a whole chapter of over 20 pages.
Expert Q&A
![where do you put a literature review in a research paper Annaliese Dunne](https://www.wikihow.com/images/thumb/2/27/Annaliese_Dunne2.png/-crop-200-200-197px-Annaliese_Dunne2.png)
- Always make sure you follow your professor’s directions for writing a literature review. Some may tell you how many sources to use or what types of sources are acceptable. Always stick with these guidelines. Thanks Helpful 1 Not Helpful 0
- Cite everything while you write! It’s easy to get caught up and forget to cite during a lit review, so always double check to make sure you referenced everything. Thanks Helpful 1 Not Helpful 0
- If you have any questions at all, it's best to ask your professor for guidance. Thanks Helpful 1 Not Helpful 0
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Thanks for reading our article! If you’d like to learn more about writing, check out our in-depth interview with Annaliese Dunne .
- ↑ https://writingcenter.unc.edu/tips-and-tools/literature-reviews/
- ↑ https://libguides.usc.edu/writingguide/literaturereview
- ↑ https://library.concordia.ca/help/writing/literature-review.php
- ↑ https://libguides.usc.edu/writingguide/evaluatesources
- ↑ https://owl.purdue.edu/owl/research_and_citation/conducting_research/writing_a_literature_review.html
- ↑ https://writing.wisc.edu/handbook/assignments/reviewofliterature/
- ↑ http://www.philau.edu/learning/INC/pdf/Writing%20a%20Literature%20Review%20SLA%20%20Arch.pdf
- ↑ https://libguides.uwf.edu/c.php?g=215199&p=1420568
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- 6. Synthesize
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- Reading Journal Articles
- Does it Describe a Literature Review?
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- Searching Article Databases
- Finding Full-Text of an Article
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You can sort the literature in various ways, for example:
How to Begin?
Read your sources carefully and find the main idea(s) of each source
Look for similarities in your sources – which sources are talking about the same main ideas? (for example, sources that discuss the historical background on your topic)
Use the worksheet (above) or synthesis matrix (below) to get organized
This work can be messy. Don't worry if you have to go through a few iterations of the worksheet or matrix as you work on your lit review!
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In the four examples below, only ONE shows a good example of synthesis: the fourth column, or Student D . For a web accessible version, click the link below the image.
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Examples of literature reviews. Step 1 - Search for relevant literature. Step 2 - Evaluate and select sources. Step 3 - Identify themes, debates, and gaps. Step 4 - Outline your literature review's structure. Step 5 - Write your literature review.
A literature review can be a part of a research paper or scholarly article, usually falling after the introduction and before the research methods sections. In these cases, the lit review just needs to cover scholarship that is important to the issue you are writing about; sometimes it will also cover key sources that informed your research ...
A literature review is a critical analysis and synthesis of existing research on a particular topic. It provides an overview of the current state of knowledge, identifies gaps, and highlights key findings in the literature. 1 The purpose of a literature review is to situate your own research within the context of existing scholarship ...
3. Evaluate and select literature. 4. Analyze the literature. 5. Plan the structure of your literature review. 6. Write your literature review. Other resources to help you write a successful literature review.
2. As a section of a research paper. Literature review as a section of a research paper How SciSpace Discover makes literature review a breeze? SciSpace Discover is a one-stop solution to do an effective literature search and get barrier-free access to scientific knowledge. It is an excellent repository where you can find millions of only peer ...
Use these relevant models to determine: 1. What you are studying 2. The perspective you are taking 3. The field(s) that are relevant. STEP TWO: SEARCH THE LITERATURE. Define the Scope Search the Literature Analyze the Literature Synthesize the Literature Write the Review.
The best proposals are timely and clearly explain why readers should pay attention to the proposed topic. It is not enough for a review to be a summary of the latest growth in the literature: the ...
Save the searches in the databases. This saves time when you want to redo, or modify, the searches. It is also helpful to use as a guide is the searches are not finding any useful results. Review the abstracts of research studies carefully. This will save you time. Use the bibliographies and references of research studies you find to locate others.
When literature reviews are incorporated into a research paper, they are often structured using the funnel method, which begins with a broad overview of a topic and then narrows down to more specific themes before focusing in on the specific research question that the paper will address. A literature review paper often follows this basic ...
How to write a literature review in 6 steps. How do you write a good literature review? This step-by-step guide on how to write an excellent literature review covers all aspects of planning and writing literature reviews for academic papers and theses.
Literature reviews are in great demand in most scientific fields. Their need stems from the ever-increasing output of scientific publications .For example, compared to 1991, in 2008 three, eight, and forty times more papers were indexed in Web of Science on malaria, obesity, and biodiversity, respectively .Given such mountains of papers, scientists cannot be expected to examine in detail every ...
In a research paper, you use the literature as a foundation and as support for a new insight that you contribute. The focus of a literature review, however, is to summarize and synthesize the arguments and ideas of others without adding new contributions. ... You can simply put the word "review" in your search engine along with your other ...
Demonstrate your knowledge of the research topic. Identify the gaps in the literature and show how your research links to these. Provide the foundation for your conceptual framework (if you have one) Inform your own methodology and research design. To achieve this, your literature review needs a well-thought-out structure.
Since the literature review forms the backbone of your research, writing a clear and thorough review is essential. The steps below will help you do so: 1. Search for relevant information and findings. In research, information published on a given subject is called "literature" or "background literature.".
Definition. A literature review is an assessment of the sources in a chosen topic of research. In a literature review, you're expected to report on the existing scholarly conversation, without adding new contributions. If you are currently writing one, you've come to the right place. In the following paragraphs, we will explain: the objective ...
The following are the most important tips for writing a literature review: Make sure that each paragraph covers a single subject or idea. Start with a thesis statement, which should sum up the paper's main idea in one sentence. Write each paragraph in a way that flows from one point to another logically and coherently.
Step One: Decide on your areas of research: Before you begin to search for articles or books, decide beforehand what areas you are going to research. Make sure that you only get articles and books in those areas, even if you come across fascinating books in other areas. A literature review I am currently working on, for example, explores ...
The main purpose of the review is to introduce the readers to the need for conducting the said research. A literature review should begin with a thorough literature search using the main keywords in relevant online databases such as Google Scholar, PubMed, etc. Once all the relevant literature has been gathered, it should be organized as ...
Include References/Works Cited List. As you are writing the literature review you will mention the author names and the publication years in your text, but you will still need to compile comprehensive citations for each entry at the end of your review. Follow APA, MLA, or Chicago style guidelines, as your course requires.
Step 3: Critically analyze the literature. Key to your literature review is a critical analysis of the literature collected around your topic. The analysis will explore relationships, major themes, and any critical gaps in the research expressed in the work. Read and summarize each source with an eye toward analyzing authority, currency ...
The actual review generally has 5 components: Abstract - An abstract is a summary of your literature review. It is made up of the following parts: A contextual sentence about your motivation behind your research topic. Your thesis statement. A descriptive statement about the types of literature used in the review. Summarize your findings.
Do not page # indent DISORDERED EATING: A REVIEW 2 Abstract Literature review abstracts and research article abstracts share the same basic format but differ in content. Abstracts of literature review articles should include the topic, the purpose of the article, and how the information sources were chosen.
Download Article. 1. Locate the most recent work in the field. In general, a literature review should be up-to-date so your reader knows the current state of the field. Start by looking for the most recent publications in the field you're working on. Use these works to get an idea of where the field currently lies.
Student A uses quotes from only ONE source and fails to use her own voice to make any arguments. Student B cherry picks quotes from THREE sources and uses block quotes instead of making his own point. Student C quotes from THREE sources but does not show how the sources interact or converse with one another and does not provide sources for their arguments in the final paragraph
White Paper: DIR Fees Simply Explained, P. HARMACY . T. IMES (Oct. 25, 2017). 56. Id. 57. ... monographs and therapeutic class reviews based on a clinical literature review. 182. The P&T Committee bases its decisions on "scientific evidence, standards of practice, peer-reviewed ... do you think a patient is more likely to take