the only book I've ever read about the illuminati was the illuminatus trilogy by robert anton wilson, and as max knows, that book is fucking awesome
The only thing that makes me mad about it is I can't read it without being stoned because every other second in that book they are getting stoned and going on some adventure.
I've never read any other books about the illuminati but the illuminatus trilogy is the best. He writes sort of like kurt vonneguht, but better really. I reccomend everybody read it if possible.