Features hundreds of the world's most powerful optical illusions. Some of the mind-boggling images seem to spring into action, vibrating, pulsing, and spinning like a hula hoop. Other ambiguous illusions feature two subjects in one.
30 fascinating optical illusions rendered in photography, artwork and computer graphics and explained in clear language for young readers.
Every type of optical illusion is here, along with notes about the science of each visual perception and how the illusions work.