The THINK TANK 3-D Pop-Up Games Puzzle Book for Children
By Ivan Moscovich
A super collection of 3-D and pop-up games and puzzles.
This large 8½” x 11¼” hardback starts out with a pop-up involving 2 strings that you have to figure out how to get them apart without untying them!
Or how about swapping places using 4 blue cars and 4 red cars on a bridge?