Depending on the course you're in, there is a chance that you may have to produce a literature review. It can be for your PhD, a Master's thesis or at the request of your tutor.
But what is a literature review? How do you perform a literature search? How do you choose which references to mention? And what are the rules to cite them?
The following presentation should answer many of those questions and more.
And remember: when in doubt, just ask a librarian!