Reference resources are a great place to begin your research. They can help you define terms as well as to find basic information about a topic, a chronicle of its history, theories, key people and sometimes a bibliography of additional sources. They can also help you focus your topic and identify the main concepts, terms and keywords that describe your topic.
There are many different types of reference sources, which include dictionaries, encyclopedias, thesauri, bibliographies, handbooks, style manuals to name a few.
Check out the links located under Reference Resources on the Film and Media subject guide for information about these individual resource-types.