When you don't know enough about a topic to narrow to a research question or to formulate a thesis, it's a good idea to do some background research. Sources like subject-specific encyclopedias, handbooks, and dictionaries can help you define unfamiliar terms and provide you with a better idea about the issues revolving around your topic. They can also point you in the direction of the important books and articles that have been written on your topic and the researchers who are the most respected in the field.
Watch this video for some instructions on finding books in OneSearch, the search box on the library's homepage.