I haven't played this game, and I somewhat doubt that I'll ever manage to coerce any of my friends to play it. Nevertheless, I think everyone should read it, especially if you're a game designer.

It is an anarchic, poetic and artful book, that challenges you deeply on the entire framework of what a roleplaying game can be. Every time I take a look at it, I find some new amazing detail that I can hardly believe has been conceived and put on a page.