Catalog data are a library’s most important map to knowledge. What does it mean that the Library of Congress just released 25 million records to the public?

It’s almost always a book in a narrow range of content—the Library of Congress classification HQ, treating sex and family topics—that is mistakenly made available to unready kids.

Students study advanced theory and practice in cataloging and classification with an emphasis on the Library of Congress classification schedules and cataloging of non-book media, and metadata for Web ...

The library sought to arrange its collections on that model into the 19th century. As the number of books and libraries grew, a more systematic approach was needed.

The Library of Congress classification has included call numbers for books related to homosexuality since at least the 1920s, originally under the rubric of Abnormal Sex Relations, while the Dewey ...

It's almost always a book in a narrow range of content — the Library of Congress classification HQ, treating sex and family topics — that is mistakenly made available to unready kids.