Kate Feiffer is a writer, a filmmaker, and a mother. She is the author of the picture books No Go Sleep!; President Pennybaker; But I Wanted a Baby Brother!; The Wild, Wild Inside; Which Puppy?; My Mom Is Trying to Ruin My Life; and Double Pink; and of the middle-grade novels Signed by Zelda and The Problem with the Puddles. She lives with her family on Martha's Vineyard, Massachusetts. Visit her at KateFeiffer.com. Bruce Ingman has illustrated many books for children, including the award-winning When Martha's Away, which he also wrote, and Boing! by Sean Taylor. Publishers Weekly described his illustrations for Boing! as "dynamic...with a reckless elan." Bruce Ingman lives in London.