Philip C. Stead is the author of the Caldecott Medal winner, A Sick Day for Amos McGee, illustrated by his wife, Erin E. Stead. Their collaboration, Music for Mister Moon, won the Great Lakes Great Reads Award. Philip has written and illustrated many picture books including Follow That Frog with Matthew Cordell, which was a Junior Library Guild Gold Standard Selection. He is also the author of Hello, My Name is Ruby, Jonathan and the Big Blue Boat, A Home for Bird, All the Animals where I Live, and Vernon is on His Way. He also illustrated Charlotte Zolotow's In My Garden for Holiday House. He lives in Ann Arbor, Michigan.

Matthew Cordell is the Caldecott Medal-winning author and illustrator of Wolf in the Snow and Hello Neighbor!: The Kind and Caring World of Mister Rogers, recipient of four starred reviews, and the illustrator of numerous highly acclaimed children's books including Philip C. Stead's books Follow That Frog, The Only Fish in the Sea and Special Delivery, which was a Washington Post Best Book. He wrote and illustrated Another Brother, Wish, and Hello! Hello!, a New York Times Notable Children's Book. Matthew lives near Chicago with his wife, author Julie Halpern, and their two children.