Electronic PCN Help Desk (Library of Congress)

Please note that this form is for Library of Congress Control Number inquiries only.
For other inquiries, please click on the appropriate link:

If you have an EPCN account, please contact your publisher liaison directly. Click here to access the EPCN logon screen, enter your account number and password, and click on "PCN Publisher Liaisons".

Email inquiries sent via the PCN Help Desk go to a general division account, not to your publisher liaison.

Subject of your inquiry (required):

Your question, comment, or error report (required):

Email address (required):

Full name (required):

Publisher's Name (required):

Your telephone number (optional, but recommended):

Note: The Library of Congress Legal Notices page explains how email is treated with regard to privacy.


Library of Congress
Cataloging in Publication Division
( August 5, 2002 )