Imaginary worlds, impossible stairways, paradoxical hallways, enigmatic patterns, and mind-boggling graphics are the trademarks of M.C. Escher's artwork. His two-dimensional drawings bring to life a fourth dimension where the surfaces of things come together like a Mobius strip. The profoundly original work of Escher has inspired countless artists, designers, and filmmakers and can be considered a genre in itself. Created in collaboration with the M.C. Escher foundation, this retrospective volume traces Escher's incredible oeuvre through high-quality reproductions, complementary texts by the world's leading Escher experts, and quotations from Escher himself.