For centuries, people have created and enjoyed visual illusions. Millions of illusions have been produced in the name of science, education, and above all fun, and this book looks at more than 120 of them. It features all types of illusion: size distortions, hidden figures, moving patterns, color illusions, and much more. Each illusion will fascinate, challenge, and trick the reader, but also offers an explanation of how it works, encouraging people to look differently at the world around them. Authors Gianni A. Sarcone and Marie-Jo Waeber are leading authorities on visual perception and designers of many new optical illusions that fascinate neuroscientists worldwide.