Freud said dreams were the "royal road" to the unconscious, and then along came a superhighway: psychedelics. Personally, we can access the psychedelic experience, but Frank Ogden shepherded over a thousand people's experiences. What is presented is the howling unconscious released from the normal chemical constraints that restrict it. Written in the simple, but vivid style Frank popularized in his bestselling, The Last Book You'll Ever Read, Shamanic Graffiti presents an alternative history of the brain and it's functions: shamanism. Giving real world examples, the book finishes-up by exploring the theories of two pre-eminent psychedelic theoreticians, Dr. Timothy Leary and Dr. Stan Grof and looks at the future of psychedelic drugs.