Often, these sources contain pictures and maps. Statistical sources and directories list facts and figures, usually in chart form. Some directories list addresses, phone numbers, and the names of individuals to contact for further information. There may also be basic introductory books or textbooks on your subject. These sources will help to provide you with keywords or subject headings to use in your searches.
Some sources contain reference lists, such as a bibliography or more information about the author.
Reference lists can direct you to other useful sources on your topic. Locating Basic Reference Sources General encyclopedias are available at the reference desk of most campus libraries. Try to look for your subject in one of these encyclopedias. If you know the name of the reference source, do a title search. If you don't know an exact title, do a keyword search.