Elephant and Piggie: We Are in a Book!
by Mo Willems
Gerald and Piggie discover that they are in a book, and they decide to have some fun with the reader. They realize that once the reader finishes the book, their story will end!
KindergartenReaders
About Mo Willems
Mo Willems is an American writer, animator, voice actor, and children's book author. His work includes creating the animated television series Sheep in the Big City for Cartoon Network, working on Sesame Street and The Off-Beats, and creating the children's book Knuffle Bunny and the children's book series Elephant and Piggie.
via WikipediaISBN: 9781423133087