Ultimate Optical Illusions Day-To-Day Calendar: Visual Tricks to Challenge the Eye and Mind

Inside this incredible, colorful, and entertaining calendar are hundreds of the world's most amazing optical illusions.
Each page of the "Ultimate Optical Illusions 2016 Calendar" features an astonishing illusion. Objects appear and disappear, some even appearing to jump right off the page; stra [...]
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Inside this incredible, colorful, and entertaining calendar are hundreds of the world's most amazing optical illusions.
Each page of the "Ultimate Optical Illusions 2016 Calendar" features an astonishing illusion. Objects appear and disappear, some even appearing to jump right off the page; straight appears bent; and colors are not at all what they seem. Every one is astonishing. So astonishing that readers will appreciate the caption, which details the visual trick and provides the latest theories about why the illusions work. This calendar is mind-boggling fun for the whole family