Big Books of 2026

Join the Goodreads Author Program

Are you Mark Haeffner, author of the books below?
Dictionary of Alchemy by Mark Haeffner The Dictionary of Alchemy by Mark Haeffner by Mark Haeffner


To join the author program as Mark Haeffner, 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