books.google.com - Renowned artist M.C. Escher is not a surrealist drawing us into his dream world, but an architect of perfectly impossible worlds who presents the structurally unthinkable as though it were a law of nature. Weird, beautiful, finely detailed illusions....http://books.google.com/books/about/The_Graphic_Work.html?id=lq-EZiRdPswC&utm_source=gb-gplus-shareThe Graphic Work
