because they help you learn important authors and ideas in your field.
This is useful for your coursework and your writing.
It may support or challenge an argument you would like to make, provide definitions and context for your work, and suggest data.
Your literature review may also help you design the methodology for your research.
For information about what is covered by the CC BY license, as well as general exceptions, see the Harvard Library CC BY Copyright Statement.
This Study Guide explains why literature reviews are needed, and how they can be conducted and reported.
Usually you will have the option of grouping items into sections—this helps you indicate comparisons and relationships.
Occasionally you will be asked to write one as a separate assignment, but more often it is part of the introduction to an essay, research report, or thesis.
It determines what has already been investigated, identifies potential relationships between concepts, defines and measures key concepts and relates to research already completed in the field of study.
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