The William Andrews Clark Memorial Library is a rare books and manuscripts collection, with particular strengths in English literature and history (1641–1800), Oscar Wilde, and fine printing. Though the majority of the Clark's collections are focused on Great Britain, the library still maintains significant Los Angeles-related collections.

The University of Southern California (USC) University Archives is the repository for the records of enduring value officially made or received by the University of Southern California, and for other materials of historical value related to the functions of the University. The University Archives includes material documenting the history and growth of the University of Southern California.

The Water Resources Center Archives (WRCA) is a unique library that collects archival materials on all aspects of water resources in California and the West. WRCA manages over 125 collections with several significant collections that pertain to water development in southern California. These collections include Franks Adams, Harry F. Blaney, John D. Galloway, Walter L. Huber, Oman J. Lillevang,…

The Wende Museum collects artworks, artifacts, and personal histories that record daily life, creative expression, and political developments in Eastern Europe and the Soviet Union during the Cold War period. The collection comprises a variety of media including design objects, works on paper, ceramics, paintings, sculptures, posters, furniture, textiles, photographs, films, videos, sound…

The Whittier History Room is located on the mezzanine of the Central Library and is home to the Whittier Local History Collection. The purpose of this collection is to collect, preserve and make available to the public materials reflecting the development of the City of Whittier and surrounding areas. The main areas of collection are Whittier history, Whittier Hills and California history. The…