The Club rooms house the Albert Sperisen Library of The Book Club of California which includes a broad spectrum of material numbering some twenty-five hundred volumes, chiefly consisting of examples of fine printing, graphic arts, and bookbinding, landmarks and firsts in the history of bookmaking, bibliography, and books about books. The library is available during business hours for consultation by members and the public, and has been professionally catalogued to exacting standards, with all titles listed in an international database, available on-line, increasing its accessibility and usefulness.

Most of the holdings are twentieth century-publications; one-fifth are about paper or binding or are special examples thereof; perhaps one-quarter are reference works on the history and technique of printing; and at least another one-quarter are fine press products issued largely but not exclusively from California.

From a computer terminal and modem, with access to the Research Libraries Group, Incorporated RLIN database, one can search for all of the Club holdings by author, title, often by printer, typographer, press, designer, illustrator, occasionally by provenance, binder, donor, and frequently by topical as well as name subjects. Started in 1991, the Research Libraries Group, Incorporated RLIN system was chosen to convert the Club's catalog records to produce catalog card sets. Ninety-three percent of the Club's monographs and serial titles were derived from the RLIN database -- the other seven percent became unique additions.