Rating: WORTHY!
This book is part of a series of touch and trace nursery rhymes (Itsy Bitsy Spider is another one, but it seems to me that once you've done one you've done them all - one being very much like another). Children can use their fingers on each page to explore patterns, pathways, and textures. It's a fun and colorful book allowing kids to explore, and it's better than those which have things stuck on the page (like the one with ten ladybugs) because there's no risk here of having a piece fall off that a child can choke on.