A literature review is a survey of information found in scholarly articles, books, and other literature related to your area of study. The goal of a literature review is to describe, summarize, evaluate and clarify the prior research on your topic. A literature review goes beyond summing up the research of others and explores the relationships within the literature. 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.
A literature review:
Why do a literature review?