Gods of Eden
by William Bramley
Ancient extraterrestrial astronauts, ancient gods, and the corrosive development of hidden brotherhoods and secret societies; all this and the foundation and genus of contemporary religions, politics and war.
A different take on human development and history from the wars of the pharaohs to the assassination of JFK that I personally find alternatively heretical, informative, ridiculous, fascinating and infuriating.
It gives me an 180 degree spin from my regular KJV reading and sparks plenty to think about over a pipe.