When is the MARC system used in library operations?

The MARC (Machine-Readable Cataloging) system is primarily utilized in cataloging new books and other library materials. This system provides a standardized format for the organization and sharing of bibliographic data in a machine-readable form, allowing for effective management of a library's collection. By using MARC, librarians can ensure that catalog records are uniformly structured, making it easier to accurately retrieve and manage information about books, journals, and other resources.

MARC records include essential details about each item, such as title, author, publication information, and subject classifications, which are critical for cataloging. This facilitates better resource discovery for patrons and interoperability between different library systems. Thus, the use of the MARC system in cataloging aligns perfectly with the needs of library operations to maintain comprehensive and accessible collections.