Libraries use the Library of Congress database to stay up-to-date on available titles. You can make it easier for them to purchase your book by registering for a Library of Congress Control Number (LCCN)--a unique identification number that the Library of Congress assigns and uses for cataloging and other book-processing activities.

For more detailed information about LCCN Assignment, please log in to your Vervante Author Account and click on LCCN Assignment under Publishing accessible via the Services menu.