Just checked out Flatland from the library, upon mention by Namaste. It’s about a society in two dimensions instead of three (or rather, three instead of four), in which all people are polygons, and look like lines. I’m about half way through it, and this is a brilliant book. I was expecting it to be a mathematical and conceptual challenge to visualize, and interesting in that respect. No. It’s extremely political, and was written as a satire (or statement) on victorian society. The bit about The Universal Color Bill revolt, and the corresponding re-opression is amazing. Very human. I highly recommend it.