Mac Barnett is the coauthor of the Terrible Two series and the author of many picture books, which have won multiple Caldecott Honors. Claire Keane studied graphic design in Paris before moving to Los Angeles, where she worked at Walt Disney Feature Animation for 10 years and contributed to Frozen, Tangled, Enchanted, and many other films. She now lives in Venice Beach, California, where she writes and illustrates children's books.