A search on Google will retrieve numerous guides and tutorials focused on researching and writing literature reviews. Some are general, i.e. not subject nor level specific while others focus on literature reviews in a specific discipline and/or on a particular level, i.e. undergraduate, graduate. Below are a few examples:
Literature Reviews: An Overview for Graduate Students (NCSU Libraries)
What is a literature review? What purpose does it serve in research? What should you expect when writing one? Find out here.
Writing the Literature Review in Three Parts (YouTube videos):
The Literature Review (Massey University)
This video lecture explains how to write a Literature Review, and examines which elements are required in one.
Literature Reviews (The Writing Center, U. of North Carolina at Chapel Hill)
Explains what literature reviews are and offer insights into the form and construction of literature reviews in the humanities, social sciences, and sciences.
Literature Review Advice
This is a short talk about what should be in an academic literature review such as the one you might produce in a final year project.