M.C. Escher, the famous Dutch lithographer, uses some of the Gestalt Principals in his work. The Gestalt Principals relate to psychology and hour our brains interpret images. Pieces like "Moebious with Birds" uses both proximity and figure ground to convey the image. At first glance, Escher's work confuses the eye (well, the brain, really), as many of his images contain impossible shapes and happenings. Escher's mastery of figure ground allow him to create these surreal landscapes and images, as he makes one part of the image seemingly flow seamlessly into another. Other elements of the Gestalt Principals come into play in other images, such as "Waterfall," which employs continuation in combination with the figure ground technique to create the confusing image. Escher masters the Principals in his combinations of them that are used in his work.