The Very Hungry Caterpillar is having an anniversary, and it's a big one! Celebrate the beloved book's 50th anniversary with the World of Eric Carle, The Very Hungry Caterpillar Wood Grasp and Twist Toy. Eric Carle is one of the most celebrated children's book authors/illustrators of all time, with over 103 million copies of his books sold worldwide. Inspired by the classic book, The Very Hungry Caterpillar, this wooden caterpillar has twistable body segments. Your baby can twist and turn the different segments in fun directions!