Just finished reading The Illuminatus! Trilogy by Robert Shea and Robert Anton Wilson. It was published in 1975 but I just found it! I thought it was really great. It's listed as sci-fi genre, it's about sex, drugs, rock & roll, the theory of Atlantis, the Kennedy conspiracy, and a million other things! It's a little confusing to follow sometimes, and I did have to go back and read a few things over again just to get the gist, but on the whole, it was a fun, interesting and different kind of read.