Hachette Book Group / Little, Brown & Co.
MPS, for National Geographic Learning
Houghton Mifflin Harcourt / Heinemann
The College Board / Springboard
Jouve, for HarperCollins
"When I co-wrote my first book, I understood the content but couldn't quite communicate it clearly. I gave Kathryn a box of parts and she handed me back a sports car. Our self-published book is now hands-down better than anything produced by the big publishing houses on the same topic. I couldn't be happier."
—Bradley P., Watters International