Most of Gödel, Escher, Bach (If you haven't heard of it, read it, take your time, and don't be put off if you don't get everything on the first (or tenth) read.

Most of Gödel, Escher, Bach (If you haven't heard of it, read it, take your time, and don't be put off if you don't get everything on the first (or tenth) read.): "GEB takes the form of an interweaving of various narratives. The main chapters alternate with dialogues between imaginary characters, usually Achilles and the tortoise, first used by Zeno of Elea and later by Lewis Carroll in "What the Tortoise Said to Achilles". These origins are related in the first two dialogues, and later ones introduce new characters such as the Crab. These narratives frequently dip into self-reference and metafiction." http://en.wikipedia.org/wiki/G%C3%B6del,_Escher,_Bach http://en.wikipedia.org/wiki/G%C3%B6del,_Escher,_Bach