From shrinking circles to distorted roads: The mind-boggling optical illusions crowned the best visual tricks in the world | Daily Mail Online
From 28 Visual Tricks That Will Make You Doubt Your Own Eyes | Cool illusions, Cool optical illusions, Illusions
Color Illusions: Visual Tricks, Fantastic Facts, and Impossible Puzzles: DK: 9781465422859: Amazon.com: Books
Duck or rabbit? The philosophical underpinning behind some visual tricks
Optical Illusions: A Gallery of Visual Tricks | Live Science
Fantastic Optical Illusions: More than 150 deceptive images and visual tricks: Amazon.co.uk: Sarcone, Gianni A., Waeber, Marie-Jo: 9781787392359: Books
Fantastic Optical Illusions: More Than 150 Deceptive Images and Visual Tricks: Sarcone, Gianni A., Waeber, Marie-Jo: 9781787392359: Amazon.com: Books