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Writing Development

Helping students develop writing and assessment skills to become independent learners

What is a literature review?

A literature review is a critical summary and analysis of existing research and publications on a specific topic. It explores what other scholars have written, highlighting key ideas, theories, and debates within the field.

A well-structured literature review provides the theoretical foundation for your research.

It helps you:

  • Identify major themes and issues in your subject area.
  • Understand the broader context of your study.
  • Determine the most effective approach for your research.
  • Interpret your findings considering previous work.

  1. Identify key authors and sources

    Start by searching library databases for relevant books and journal articles. Use bibliographies and existing literature reviews to find additional sources. Reviews of books or articles can also highlight how they were received and their impact on the field. Keep a record of your searches and results so you can revisit them.

  2. Read and make notes

    Assess each source for relevance and usefulness in answering your research question. Use different reading strategies to identify key arguments and evidence:

    • Scan contents or index for keywords to check relevance.
    • Gist reading: focus on introduction and conclusion for main argument.
    • For journals, start with the abstract, then introduction and conclusion; read details only if needed.

    If a source is key, read in depth but not necessarily every page. Ask:

    • What is the author’s question and argument?
    • How strong is the evidence? Are there omissions or bias?
    • How does it compare with other authors and your own ideas?

    Record each source as you find it. Include database, search terms, and date. Use tools like RefWorks or EndNote, or note cards, and apply a proper referencing style from the start. For each source, note author, argument, key concepts, research method, and your reflections. Make clear notes on main points and perspectives and organize them by emerging themes for your review.

  3. Write the review

    Present authors’ arguments in a logical order, highlighting similarities and differences. For each source:

    • Describe what the author found or argued.
    • Interpret its meaning, noting omissions, bias, and how it relates to other works and your own ideas. Your critical response creates the narrative thread, avoid a simple list of summaries.
    • Discuss the significant issues and trends in your subject area. Compare and contrast the viewpoints of different authors and include your own evaluation of their arguments to ensure your review is critical rather than descriptive.

Like an essay, your review should include an:
  • Introduction

    State the research question, outline the debate, explain why the topic matters, and note any scope or limitations.

  • Main body

    Present previous research and arguments in a logical order (by theme, chronology, theory development, sector, or methodology).

  • Conclusion

    Summarise key ideas, highlight gaps, and show how your research builds on existing knowledge.

It usually follows the introduction as a separate chapter, though it can sometimes be part of the introduction. Smaller reviews may appear throughout the thesis, and in some fields (e.g., medical or social sciences) it may stand alone.

By the end, you will have:
  • An understanding of how the subject has developed and its current debates.
  • Insight into key issues, findings, and research methods.
  • Awareness of gaps in the literature and where your research fits.
  • Ideas to refine your research question and approach.
  • Guidance on choosing suitable methodology.
  • A basis for analysing and interpreting your data against existing studies.

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