When a bus driver takes a break from his route, a very unlikely volunteer springs up to take his place -- a pigeon! Don't Let the Pigeon Drive the Bus was Mo Willem's picture book debut, earning a Caldecott Medal and launching the career of one of the most beloved creators of children's books working today.  You won't want to miss this special hardcover copy of Don't Let the Pigeon Drive the Bus, signed by Willems.