The California Historical Society collects materials of enduring historical and cultural value in support of its mission to inspire and empower Californians to make the past a meaningful part of their contemporary lives. In our North Baker Research Library, we hold some fifty thousand books and pamphlets, four thousand manuscript collections, half a million photographs, as well as ephemera,…

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. …

Special Collections & Archives is the home of CSUN's rare book and periodical collections, as well as its archival and manuscript collections. In Special Collections & Archives users can perform research, engage in classes using primary sources, or view exhibitions. Our collections are made available to researchers in a supervised reading room. We welcome users, and ask for understanding…

The California Institute of Technology Archives and Special Collections, founded in 1968, has a mission of facilitating understanding of Caltech’s role in the history of science and technology. Our collections include the papers of Caltech researchers; photographs, film, audio, video, websites, and publications documenting Caltech’s history; scientific instruments characteristic of research at…