Looking for a blue stripe? Just spin around that square with a window in it. Searching for a purple stripe? Open four simple flaps and you’re done. Too easy? See if placing that yellow transparent stripe over a blue one will give you the green stripe you need. But just when you think you’ve got it down, the sliders, accordion folds, and elaborate pop-ups in this ingenious book start channeling a Rubik’s Cube — and promise big satisfaction to readers who meet the challenge. Eye-catching and bold, here’s a book with appeal to young and old alike.