PDF-file by Gyles Brandreth

Classics PDF ebook download
DO NOT believe everything you see, because these amazing, astounding, seemingly impossible illusions can "fool" your eyes. Open up this collection to view a wondrous array of optical effects: specks seem to move, grey spots appear and disappear, circles gyrate, patterns pulsate, and straight lines wave and bend. Shapes and drawings keep you from distinguishing what's there, and make you perceive things that aren't. Objects appear different from a distance than they do close up. They'll forever change the way you look at things.

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