Judy Sierra is the author of many award-winning books for children including the bestsellers Antarctic Antics, illustrated by Jose Aruego and Ariane Dewey; Wild About Books, illustrated by Marc Brown; and The Secret Science Project that Almost Ate the School, illustrated by Stephen Gammell.

Sierra holds a PhD in folklore and mythology from the University of California, Los Angeles. She has received the Children’s Choice Award from the International Reading Association, two Aesop awards from the American Folklore Society, and the E.B. White Read Aloud Prize from the Association of Booksellers for Children. She lives with her husband in Eugene, Oregon. 

G. Brian Karas is the prolific, versatile, and award-winning illustrator of many books for children, including A Poem in Your Pocket, How Many Seeds in a Pumpkin?, and The Apple Orchard Riddle. He also illustrated A Hat for Mrs. Goldman by Michelle Edwards; Neville by Norton Juster; Clever Jack Takes the Cake by Candace Fleming, which received four starred reviews; Are You Going to Be Good? by Cari Best, a New York Times Best Illustrated Book; and Home on the Bayou, a Boston Globe-Horn Book Honor Book.