Jory John is the author of multiple books for children and adults, including the New York Times best sellers The Terrible Two and The Bad Seed, as well as the popular Penguin Problems and E. B. White Read-Aloud Honor book Goodnight Already. He lives in Oregon with his wife.

Liz Climo is an author, illustrator, and animator currently working on The Simpsons. She has written and illustrated several children's books, including the Rory the Dinosaur series, and two comic collections based on her incredibly popular Tumblr, Hi I'm Liz. She lives in Los Angeles with her family. Less