Tertiary sources are excellent starting points! They consist of information synthesized from primary and secondary sources. These resources give you succinct overviews of your topic, explain scholarly arguments, point out interesting questions, and refer you to especially key sources. 

In Collins Library, the print reference collection is located on the first floor, and most of the online reference collection is available in one of the database collections listed below. Use Primo to identify subject encyclopedias in either format; or ask a librarian for recommendations.