Flatland: A Romance of Many Dimensions
by Edwin A. Abbott (Seeley & Co., 1884)
audiobook read by James Langton (Tantor, 2009)
A mercifully short ‘mathematical’ SF novel in which a square, learning of the hitherto unknown third dimension, narrates the workings of his own two-dimensional world. Flatland is readable as a (late 19th Century) social satire, but the story has little intrinsic appeal.