Impossible staircases and contradictory geometric forms define Oscar Reutersvärd’s visual legacy. Books and catalogues devoted to his work reproduce hundreds of these drawings, including impossible staircases, cubes and interlocking forms created decades before similar imagery became widely associated with visual puzzles. The interest is primarily graphic and perceptual rather than literary: the viewer must work out where perspective, depth and continuity contradict one another. Reutersvärd’s images are usually cleaner and more diagrammatic than the elaborate architectural worlds of M. C. Escher. For discovery, the work connects most naturally with optical illusion, impossible geometry, visual puzzles and graphic art, especially for readers interested in perception and mathematical-looking design. Read more Less