The Department of Archives and Special Collections, of the Hannon Library, Loyola Marymount University, acquires, organizes, and opens to research, primary source materials in the arts, humanities, education, and religion.

Collections include pamphlets and ephemera documenting the growth, industries, transportation, and social organizations of Los Angeles and greater southern California; photograph collections; thousands of books related to southern California; and numerous archival collections related to indiviuals, the citrus industry, and businesses in the Inland Empire.