Review of The Annotated Flatland: A Romance of Many Dimensions

An unassuming square (literally) gets his orderly universe seriously shaken up by a visitor from a higher dimension, a mysterious sphere. From there he goes on mind-bending jaunts to a number of other dimensions and strange realities. This book provides plenty of interesting mathematical concepts to chew on, but the author also manages to slip in some very nimble jabs at Victorian culture. The annotated version is a bit long-winded at times, but oh-so-fun! Definitely the edition to get.