The California State Library, comprising sections including California History, Information Services, Government Publications, and the Witkin Law Library in Sacramento and the Sutro Library in San Francisco, holds a wide variety of materials relating to the history of Los Angeles, including manuscripts, rare books, maps, photographs and other visual resources, ephemera, vertical files, and more. …

Collections include 5,000+ oral histories in 250 projects, representing geographical, ethnic, political, religious, and social communities of selected Orange County, Los Angeles, Southern California, and Western US locales.