CLIO is the online catalog for the Columbia University Libraries.

It includes records for materials available in Columbia’s main and departmental libraries as well as electronic resources accessible to all current Columbia and Teachers College students, faculty, and researchers. CLIO does not include the holdings of the Teachers College, Columbia Law School, or Jewish Theological Seminary libraries, which are represented in Educat+, Pegasus, and the JTS online catalog, respectively.

CLIO includes records for books, serials, journals, newspapers, online resources, government documents, microforms, sound recordings, video recordings, and archival collections; it does not include citations to articles in magazines, journals, and newspapers. CLIO includes records for the journals and newspapers to which the Libraries subscribe, but not the articles published in them.

For Columbia’s full description of all of CLIO’s features, see CLIO Help.