"An author addendum is a proposed modification to a publisher's standard copyright transfer agreement. If accepted, it would allow the author to retain key rights, especially the right to authorize OA. Because an addendum is merely a proposed contract modification, a publisher may accept or reject it."
Founding Authors Alliance member Michael Carroll, from American University’s Washington College of Law, explains how addenda can help modify publishing contracts to help authors keep the rights necessary to make their work available.
This LibGuide was borrowed with permission from Stephanie Brenenson, Graduate Studies / Scholarly Communication Librarian, at Florida International University. Content was adapted from Author's Rights and Copyrights: A Briefing Paper at openoasis.org
Please note that this guide is not meant to be a substitute for legal advice.
 Excerpted from the Open Access Directory.
 Adapted from SPARC.