JULES FEIFFER has won a number of prizes for his cartoons, plays, and screenplays, including the Pulitzer Prize for editorial cartooning. His books for children include THE MAN IN THE CEILING, I'M NOT BOBBY!, A ROOM WITH A ZOO, and BARK, GEORGE. NORTON JUSTER is the author of the children's classic THE PHANTOM TOLLBOOTH. His first picture book, THE HELLO, GOODBYE WINDOW, illustrated by Chris Raschka, won the 2006 Caldecott Medal and was followed by a sequel, SOURPUSS AND SWEETIE PIE.