This full-color picture book helps children learn their numbers in sign language. Each two-page spread of this delightfully illustrated book has the appropriate number of things or creatures for the numbers 0 through 20. The signs for the numbers 30, 40, 50, 60, 70, 80, 90, and 100 are also included. Each sign/number appears in the corner of the page. Written explanation of how to form each sign are provided in the back of the book.