Rachel Vail is the author of numerous novels and picture books, including Justin Case: School, Drool, and Other Daily Disasters, Piggy Bunny, and Flabbersmashed About You. She lives in New York City with her husband and sons.
Matthew Cordell is the author and illustrator of the picture books Trouble Gum and Another Brother, also published by Feiwel and Friends. He lives outside of Chicago with his wife, the author Julie Halpern, and their daughter.