Daniel J. Mahoney is a radiologic technologist, as well as a children's book author and illustrator. His picture books include The Perfect Clubhouse (Clarion), and the touch-and-feel book, I See A Monster by Laurie Young (Piggy Toes Press). He lives in Albany, NY, with his son.

Jef Kaminsky has illustrated several picture books, including Bite Me, I'm a Book by Sarah Weeks, but Monstergarten is his first book in ten years. By day, he holds an executive position in the entertainment arm of publishing. The rest of the time, he lives and draws in Brooklyn, with his wife and their daughter.