50 interactive, mind-bending illusions that will boggle your brain. Be warned: everything is not as it seems! From shifting pictures to spectacular visual patterns, open the doors of perception with Optical Illusions. Encounter 50 incredible illusions in this fully interactive eBook's five colorful galleries, covering impossible objects, distortions, ambiguities, illusions of brightness, and much more. If your brain is truly bewildered, additional info boxes give explanations of how to spot the illusions and why these visual trickeries fool us. Optical Illusions will have you questioning reality-can your mind's eye see what's really there?