Cook Library, located on the Hattiesburg campus, contains the principal collections of books, periodicals, microforms, government documents, and other materials which directly support the research and instructional programs of The University of Southern Mississippi at all levels.
McCain Library and Archives is home to the University Libraries Special Collections Department. This includes one of the leading children's literature collections in the United States, the de Grummond Collection.
Credo Reference is an online reference collection which includes access to 3.5 million full text entries in over 700 encyclopedias, subject dictionaries, and biographical sources. Credo Reference offers several research tools, including a Mind Map to aid in research discovery.