Las Vegas Sun

Dewey Decimal System still most common, but some libraries using updated classification

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. Dewey ...
insider.si.edu

Library of Congress classification. B-BJ. Philosophy, psychology / prepared by the Cataloging Policy and Support Office, Library Services

Rev. ed. of: Classification. Class B. Subclasses B-BJ. Philosophy, psychology / Office for Subject Cataloging Policy, Collections Services, Library of Congress. 4th ...
insider.si.edu

Classification. Class M. Music and books on music / Subject Cataloging Division, Processing Department, Library of Congress

"A revision of the second edition, originally published in 1917, and includes additions and changes made by the Library of Congress through June 1977." Includes index. Kept up to date by the ...