Big Books of 2026

Join the Goodreads Author Program

Are you M.B. Hart, author of the books below?
Biotic Recovery from Mass Extinction Events by M.B. Hart In Ruins by M.B. Hart GS SP 181 - Climate by M.B. Hart Cretaceous Project 200, Volume 2 by M.B. Hart Cretaceous Project 200, Volume 1 by M.B. Hart The Scientific Study of Flint and Chert by G. de C. Sieveking


To join the author program as M.B. Hart, 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