This Leo Lionni board book introduces babies and toddlers to his iconic characters as well as 100 essential first words! Perfect for learning and for play, here are 100 essential first words to introduce young readers to the world of Leo Lionni in a casebound board book with sturdy pages. Along with Lionni's signature bold art style you will see some familiar and classic characters throughout like Frederick the Mouse and Swimmy. From colors to fruits and vegetables, and so much more, there's something fun to learn and discover on every page!