OOLY's adorable Spot the Difference puzzle book for kids is a super fun way for kiddos to keep busy. It features 24 fun themes like cookies and milk, outer space, and ice cream conessure to challenge your child's observation skills. Each spot the difference puzzle also includes a tic-tac-toe game on the back! These two cookies are identical or are they? Only you can Spot the Difference in this sweet puzzle book for kids. It features 24 different whimsical themes, like two ice cream cones sprinkled with slight differences and an outer space design starring minor galactic changes. , , On the back of each spot the difference puzzle sheet is a game of tic-tac-toe, so you can challenge your kids to some X's and O's. This spot the difference book is a great addition to a birthday gift or a fun activity for kiddos while you're on the go!