WorldCat is OCLC’s Online Union Catalog, and contains over 32 million records in all disciplines from approximately 12,000 libraries worldwide.  Citations for books, journals, manuscripts, maps, music scores, sound recordings, films, computer files, newspapers, slides, videotapes, etc., are in a variety of languages.  Dates range from 1,000 AD to the present, and the database is updated daily.  Users can limit searches by date, language, and form.

Search options, the database description, and general help screens have been carried over, as much as possible, to be consistent with information in the Telnet version.

Because of its size, searches may retrieve hundreds of records.  For smaller result sets, one may want to search the Melvyl Catalog (CAT) or the California Periodicals (PE) databases first.

To locate items in search results at UC or other California libraries, use the CAT or PE databases.