Q. What is the difference between Cataloging in Publication (CIP) Program and the Preassigned Control Number (PCN) Program?
The Cataloging in Publication Program creates bibliographic records for forthcoming books most likely to be widely acquired by U.S. libraries. The bibliographic record (also known as CIP data) is sent to the publisher and printed on the verso of the title page. A machine-readable version of the record is also distributed to libraries, book dealers, and bibliographic networks worldwide via the Library's Cataloging Distribution Service (CDS).
The Preassigned Control Number (PCN) Program assigns a Library of Congress Control Number to titles most likely to be acquired by the Library of Congress as well as some other categories of books.