Typical very cool Philip K. Dick book with rampant paranoia, people with different psychic abilities and a dark future. This is one of his best that he wrote late in his career. This is also the funniest book by him I've ever read with a few outright hilarious lines. And you won't believe what the protagonist does for a living. The only science fiction author who can come up with such bizzare ideas and yet make it all work.