magic eye

Magic Eye is a series of books published by N.E. Thing Enterprises. The books feature autostereograms, which allow some people to see 3D images by focusing on 2D patterns. The viewer must diverge their eyes in order to see a hidden three-dimensional image within the pattern. The term "Magic Eye" has become something of a genericized trademark, often used to refer to autostereograms of any origin. The autostereogram predates the Magic Eye series by several years. Christopher Tyler created the first black-and-white autostereograms in 1979 with the assistance of computer programmer Maureen Clarke.

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