Since you have mapped out your topic, you want to locate books that are relevant to your topic.
Do you need to locate theoretical information on your topic? A definiation?, etc...
Above is a simple Summon search box. In Quick Search you can limit the results to Books and eBooks available in the USC Libraries.
Ebrary Academic Complete Subscription Collection to search for electronic books available to USC students.
Subject include:
Gathering background is one way to formulate your argument. The following databases contain a wealth of information: