Bibliographical records, with broad subject headings, for materials catalogued by the US Library of Congress. Separated into different databases:
(a) BOOKS (LOCI): English language books 1968-, French 1973-, German, Portuguese, Spanish 1975-, other European languages 1976-77, non-European languages 1978-79. Some microforms 1984-.
(b) BOOKS (PREM): earlier than the dates above. Some serials, maps, music, audiovisual items.
Combination of LOCI and PREM
(c) LOCS: Serials catalogued at LC & some other libraries since 1973
(d) LOCM: Maps and other cartographic items catalogued at LC 1968- and some other research libraries 1985-. Atlases (which are books) are in LOCI and PREM.
Also available via WWW/gopher, which includes access to other LC services, including information on the subject/geographical departments of the library. Includes connections to services elsewhere. The WWW server also offers a simplified search interface (but only suitable for retrieving small sets of records)