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Fantastic Optical Illusions - Wow your Eyes!
Eye Tricks: Visual Deceptions and Brain Teasers: Amazon.co.uk: Sarcone, Gianni A., Waeber, Marie J.: 9781847323187: Books
Test your Brain with these Top 10 Visual Illusions | SharpBrains
Fantastic Optical Illusions: More than 150 deceptive images and visual tricks: Amazon.co.uk: Sarcone, Gianni A., Waeber, Marie-Jo: 9781787392359: Books
Lathwell Associates on Twitter: "Clever #design - visual tricks http://t.co/Zzkx9l0AGg"
Screen Your Vision With These 9 Visual Tricks: Can You Really See As Well As You Think?