By Leo Lionni, Author & Jan Gerardi, Illustrator. A new board book about opposites for the youngest fans of Leo Lionniinspired by his bestselling books!Up, down (and fast, slow) are simple concepts every child should know. Now little ones can learn about opposites with this playful board book, inspired by the works of legendary childrens book author-illustrator Leo Lionni! With sturdy pages and colorful collage-style artwork. For ages 1 and up.