The Steve Jackson Edition (aka the Fifth Edition) is one of the best editions of the Principia around. This was the edition that introduced Jaden and myself to Discordianism. It includes about twenty pages of new materials, most of it hilarious, as well as the original Principia that can be found in the other editions. Unfortunately, it's hard to find nowadays but you can still pick up a used copy.

The Loompanics 4th edition is the most common version available. It's been in print for over 20 years, and is still readily available.

The 2nd Illuminet Edition includes a lengthy introduction by Kerry Thornley, one of the two founding fathers of Discordianism. Other than the introduction, it presents no new material, but it's probably your best choice if you can't get the Steve Jackson Games Edition.

This is a complete collection of the five books in Douglas Adams' "Hitchhiker's Guide to the Galaxy" series. No one is as surreally humorous as Douglas Adams; his description of the Vogon spacecraft sent to demolish the Earth - that it "hangs in the sky in exactly the way a brick doesn't" - has always stuck in my mind. If there were such a thing, I'd call this required reading for Discordians. - Bobo

This politicized sci-fi novel follows the largely accidental doings of a man who manages to become a central figure in a very detailed history of the future. Ken MacLeod gives us a Eurocentric view of the future, which is filled with nanotechnology, mostly unlimited, though occasionally interrupted lifespans, teletroopers, wormholes, superintelligent posthuman Jovian amoeba things, and more that I can't even get into here. This author definitely has some insight into the way the world will turn out. - Jaden

Ancient Sumerian mind programing, friendly Mafia neighborhood franchises, a nuclear bomb weilding Inuit, and a hacker and a skateboarding teenage girl trying to stop the end of the world. What more can you ask for in a novel? - Madog

Set in both World War II and the present, this book is about codes and secrecy. One group of characters is an odd military outfit whose task it is to make the use of intercepted Axis messages seem like a string of accidents - by dumping a Nazi corpse in a wetsuit into the desert, for example. Another group of characters tries to establish an international monetary system free of any governmental control. Thoroughly engrossing; you will have a big Cryptonomicon-shaped dent in your brain when you're done. - Jaden

This is a fantastic book, full of some incredible and inspiring ideas (and a few bad ones). The language is a little tricky at first, but it grows on you quickly. Mine is full of highlighting. This is a Dover Thrift Edition, only $2 (US). - Jaden

Robert Anton Wilson's books are the only fiction I know that consistently revolve around Discordians. Beside that, they're just pure MindFuck. You can't top Illuminatus! when it comes to pure Discordian-themed hikinks. This book is a "must read" for all Discordians.

The Shrodinger's Cat Trilogy In some ways this is a sequel to Illuminatus!, in some ways it is not. If you liked Illuminatus! you'll probably like this. You can tell that RAW is writting without Robert Shea this time, but the book is easily one of the best Discordian themed books out there, if not as explicitly so as Illuminatus!

Imagine trying to make sense of an amalgam of Timothy Leary's eight neurological circuits, G.I. Gurdjieff's self-observation exercises, and Aleister Crowley's magical theorems.That is exactly what Robert Anton Wilson does in Prometheus Rising. In short, this is a book about how the human mind works and what you can do to make the most of yours.