The Library has a large collection of manuscripts, printed books and periodicals, photographs, maps and ephemera relating to Los Angeles.

The Gilb Museum of Arcadia Heritage was opened in 2001 and is named after its lead donors, Ruth and Charles Gilb. The Museum is maintained and operated by the City of Arcadia and houses artifacts and artwork representative of local Arcadia history and culture. The Museum presents seven individual interpretive exhibit spaces with both permanent and temporary exhibits as well as three off-site…