A background source provides important context about your Object of Study. As you start your research, what information do you already know about your topic? What information would be useful to know? Encyclopedias and dictionaries are good sources to consult when you are at the beginning of your research and you are compiling the basics about your topic. Also, search the catalog for books on your topic that can provide a detailed history of it.
Need a quick refresher on how to look for books in the SU Library Catalog? Watch this video below.