Challenge Faves

Join the Goodreads Author Program

Are you Ingrid Marshall, author of the books below?
Fluoride and Your Health by Ingrid Marshall Benefitting Business and the Environment by Julie Hill


To join the author program as Ingrid Marshall, 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