This study investigates the evolution and conceptual consistency of the 'author' as a primary entry point within major English-language cataloging codes. James A. Tait examines the historical development of authorship definitions, tracing the progression from the British Museum's rules to the 1967 Anglo-American Cataloguing Rules. The work provides a comparative analysis of how different codes handle complex authorship scenarios, such as corporate bodies, pseudonyms, and collaborative works, to determine the logical foundations of bibliographic control.

The subject matter points to a dense, specialist text intended for library science professionals and historians of information organization. The framing suggests a rigorous, technical examination of the evolution of bibliographic standards that remains relevant for understanding the structural logic of modern library catalogs.