Ángel Luis Jiménez
John David Harding
A Literature Review establishes the connection between your proposed research and existing research; it gathers the information together as a "whole" rather than as a set of reviews.
A literature review helps your reader understand:
As you survey the previous research on a subject, you may be able to identify areas which have not yet been investigated.
A literature review is not simply a survey of one author or researcher after another; there needs to be a selection process with some criteria in place to determine which articles, dissertations, thesis, etc., to include and exclude in the review.
It should NOT strictly consist of summaries
It should reflect your ability to analyze and discuss others' research
It will probably need to be organized using sections and subheadings