This satire about a two-dimensional world vexed by single- and multi-dimensionality has been continuously in print since first published in 1884, enjoyed by young students of geometry and sophisticated physicists alike, and hailed as a precursor of science fiction. Andrew Hoyem's radical design and illustrations realize many implications of the book, such as: the "volume" can be opened out flat to form a thirty-foot plane; the plane-geometrical citizens of Flatland are infinitely thin (holes in paper); they cast shadows; their edges glow.