Jonathan Stutzman is an award-winning children's book author and filmmaker. His work for children includes the bestselling Tiny T. Rex series as well as Llama Destroys the World illustrated by Heather Fox, Bear Is a Bear illustrated by Dan Santat, and many others. He lives in Pennsylvania, where right now he's most likely reading or thinking about new stories.

Jay Fleck is the author-illustrator of Crinkle, Crinkle, Little Car and the illustrator of a number of other children's books, including the bestselling Tiny T. Rex series. He resides in a suburb south of Chicago with his wife, two children, and loyal dog, Otis. He spends his spare time running and reading (but not at the same time).