Whats Wrong Here

With the same care for details and inventive touches that accompany all his work, Wallner has illustrated these Mixed-Up Picture Book pop-ups with art that relies only moderately on feats of paper engineering. The books are like small, compact games: in What's Wrong Here? there are 100 mistakes incorporated into energetic pictures (a bird flying upside-down, a boy sunbathing at the bottom of the ocean); Look and Find asks readers to hunt for similar or identical objects, or pairs of itemsa lesson in generalization is present, accompanied by comedic moments. The books are humorous and well-designed with lift-up flaps, pull tabs and enough screwball sights to keep children happily engaged in the hunt. Ages 4-7. (March)