Big Books of 2026

Join the Goodreads Author Program

Are you Maris Köpcke, author of the books below?
Legal Validity by Maris Köpcke A Short History of Legal Validity and Invalidity by Maris Köpcke Legal Validity by Maris Köpcke


To join the author program as Maris Köpcke, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


About the Author Program
Authors on Goodreads
Author Guidelines
Author Program How-To
Author & Advertisers Blog
Ask the Author: Featured Authors
About Goodreads