Elmo shares lots of funny jokes and riddles guaranteed to make preschoolers giggle! Families will love this sturdy board book with interactive lift-the-flaps. Elmo wants to make you laugh! This sturdy board book is filled with more than 25 jokes, riddles, and knock-knock jokes that will have young Sesame Street fans giggling along with their favorite characters! And there are flaps to lift to add to the fun! Sesame Workshop, the nonprofit educational organization behind Sesame Street, aims to help kids grow smarter, stronger, and kinder through its many unique domestic and international initiatives. These projects cover a wide array of topics for families around the world. Sesame Street is the most trusted name in early learning.