Mo Willems knows a Good Idea when he sees one. A three-time Caldecott Honor winner (for <em>Don’t Let the Pigeon Drive the Bus!</em>, <em>Knuffle Bunny</em>, and <em>Knuffle Bunny Too</em>), he also won two Geisel Medals and two Geisel Honors for his Elephant and Piggie books. His books are perennial <em>New York Times</em> bestsellers, including <em>Knuffle Bunny Free</em>, <em>Hooray for Amanda & Her Alligator!</em>, and the Cat the Cat series. Before he turned to making picture books, Mo was a writer and animator on <em>Sesame Street</em>, where he won six Emmys. Mo lives with his family in Massachusetts.