About the Author

MAC BARNETT is the New York Times bestselling author of many picture books, including the New York Times bestseller The Three Billy Goats Gruff; The Wolf, the Duck, and the Mouse; the Caldecott Honor Book and E. B. White Read Aloud Award winner Sam and Dave Dig a Hole; the Shapes Trilogy (Triangle, Circle, and Square); and the Caldecott Honor Book and Boston Globe-Horn Book Award winner Extra Yarn. Mac is also the author of the middle-grade series, Mac B., Kid Spy. He lives in Oakland, California.
JON KLASSEN is an animator and Governor General's Award-winning creator of children's books. His book This is Not My Hat won both the American Caldecott Medal and the British Kate Greenaway Medal, making Jon the first person to win both awards for the same work. Jon was born in Winnipeg, Manitoba, and currently resides in Los Angeles.