- Subject Headings Manual Update No. 1, 2012
- Web-based subscription service
- Discontinued print publication.
Available in Cataloger's Desktop. See http://www.loc.gov/cds/desktop/
Introduction to Subject Heading Authority Control
Available in various formats, these tools help you with subject access. The major subject authority publications include Library of Congress Subject Headings, Classification Web, and Subject Headings Manual and updates. Many of the publications are available in Classification Web (http://www.loc.gov/cds/classweb) and in Cataloger's Desktop (http://www.loc.gov/cds/desktop).