Bob Shea is the author, illustrator, or author-illustrator of many well-loved picture books and chapter books, including the Ballet Cat and Dinosaur vs. series as well as Unicorn Thinks He's Pretty Great; Unicorn Is Maybe Not So Great After All; Crash, Splash, Moo!; and Who Wet My Pants?, which was illustrated by Zacharia OHora. Bob Shea's characters and animations have appeared on Nick Jr., Playhouse Disney, and PBS KIDS. He lives in Connecticut.