All books published in the United States are technically copyrighted, but it’s best to register your copyright. Read Copyright Basics for an overview of copyright rules and also see the FAQ page. To register your copyright, you’ll need to submit two copies of your book, a $45 fee, and the copyright form. You can download a paper application form to mail with your books but you must complete the form online before printing it. Or, you can save $10 on the fee by completing and submitting the copyright form online.
Library of Congress Control Number
A Library of Congress Control Number (also called a Library of Congress Card Number or LCCN) is assigned to each book that is cataloged by the Library of Congress. This number helps libraries and booksellers catalog and process books.
Preassigned Control Number (PCN)
Publishers of books that will be marketed to libraries should use the Preassigned Control Number (PCN) program to obtain an LCCN prior to publication, and print the LCCN on the copyright page of the book. The PCN program is restricted to books that list a U.S. city as a place of publication on the title page or copyright page and meet other requirements. Get more details about the PCN program here.
The Cataloging-in-Publication (CIP) record is a bibliographic record prepared by the Library of Congress and provided to the publisher for inclusion on the book’s copyright page. This data saves libraries the time and expense of individually cataloging each book they acquire. CIP records are also distributed to large libraries, bibliographic services, and book vendors around the world.
Only publishers who publish the work of three or more authors and meet other requirements are eligible for the CIP program. See this page for details.
Publisher's Cataloging-in-Publication (P-CIP)
Publishers who are not eligible for CIP service from the Library of Congress can obtain cataloguing data from another qualified source. CIP data that's provided by the publisher is usually referred to as Publisher's Cataloging-in-Publication data (P-CIP). Two sources of P-CIP services are:Cassidy Cataloguing Services
As an alternative, you might ask your local library if they would be willing to provide P-CIP data for your book.