"Whatintheworld?"That'swhatyou'llsaywhenyouopenthisamazing large-formatphotobook, full of real-life riddles andpuzzlingpictures.Patterns, colors, shapes, hidden animals, optical illusions, double-take photocomparisons, andmuchmore willgiveyour braina workout andkeep youcoming back formore! "From the Hardcover edition.""