Readers' Most Anticipated Books for Fall 2025

Join the Goodreads Author Program

Are you Erik Gregersen, author of the books below?
The Outer Solar System by Erik Gregersen The Britannica Guide to Analysis and Calculus by Erik Gregersen The Britannica Guide to Relativity and Quantum Mechanics by Erik Gregersen The Milky Way and Beyond by Erik Gregersen The Britannica Guide to the History of Mathematics by Erik Gregersen The Inner Solar System by Erik Gregersen The Britannica Guide to Matter by Erik Gregersen The Britannica Guide to the Atom by Erik Gregersen The Britannica Guide to Particle Physics by Erik Gregersen The Britannica Guide to Electricity and Magnetism by Erik Gregersen


To join the author program as Erik Gregersen, 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