following back tons
Starlog Photo Guidebooks (1977-1980)
Close Encounters of the Third Kind - art by Ron Weidner (1978)
Maurits Cornelis Escher (17 June 1898 – 27 March 1972), usually referred to as M. C. Escher, was a Dutch graphic artist. He is known for his often mathematically inspired woodcuts, lithographs, and mezzotints. These feature impossible constructions, explorations of infinity, architecture, and tessellations.