The revised edition of the book is very impressive. An additional chapter, 'Cataloging on computers', has been added and the explanation of the MARC format is quite good. Students and practicing LTAs will understand the various tags and indicators associated with a MARC record. The chapter contains good examples of books, video recordings, serials, and computer disks cataloged in MARC format. Kao also gives the reader a guide to the commonly used MARC tags, ...