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Literature Reviews

A how to guide on literature reviews.

What is a Literature Review?

A Literature Review Is:

A literature review is the writing process of summarizing, synthesizing and/or critiquing the literature found as a result of a literature search. It may be used as background or context for a primary research project.

When writing your review, there are objectives you should keep in mind:

  • Inform the audience of the developments in the field
  • Establish your credibility
  • Discuss the relevance and significance of your question(s)
  • Provide the context for your methodological approach
  • Discuss the relevance and appropriateness of your approach.

​The level of detail or comprehensiveness of your literature review may depend on many things, but especially the purpose and audience of your review. For example, if you're writing a literature review that will aid you in writing a thesis or dissertation, you may want to have a very comprehensive lit review that reviews all relevant literature on a topic, as well as relevant sources beyond what is immediately and freely available (e.g. foundational scholarly articles not available through library collections).

A Literature Review is NOT: 

  • A research paper - which expands or builds upon existing knowledge established in literature reviews
  • An annotated bibliography -  which is a list of books, articles, films, and other works with descriptive and evaluative comments
  • A literary review - which focuses on one work
  • A book review - which is an analysis of a particular book, including strengths and weaknesses, quality, and style

The Purpose of a Literature Review

There are several reasons to review the literature:

  • Identify the developments in the field of study
  • Learn about the information sources and the research methodologies
  • Find gaps in the literature that can become research questions
  • Validate the originality of a research project
  • Evaluate the methods
  • Identify errors to avoid
  • Highlight the strengths, weaknesses and controversies in the field of study
  • Identify the subject experts