Since childhood I have been mesmerized by M.C. Escher's art work.  Escher's works are considered impossible illusions, they trick the viewer into seeing both the two dimensional and three dimensional picture at once.  His visual understanding of mathematics is clearly evident in his artwork. To accomplish his impossible pictures he utilized and also broke pictorial rules such as interposition, shading, linear perspective, height in field, and size.  Escher's work has been appreciated by mathematicians and scientists alike and there has never been another artist to create such unique artwork.
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