In this New York Times Best Illustrated Book, brightly colored fish paired with interactive die-cut pages introduce young children to counting and basic addition in this fun and accessible concept book by Caldecott Honor–winning author-illustrator Lois Ehlert. Bold and vibrant fish who fill this playful deep sea adventure are sure to school and delight young readers with each page turn. Easy-to-read text and graphic shapes make this book the perfect counting classic to gift to every little one's library.