Gareth Hamlyn takes readers on a journey through LSD research and its implications for improving psychotherapy. LSD is one of the strongest serotonergic hallucinogens known to medicine, and it has had a stigma associated with it since it was classified as an illicit substance in the mid-1960s because of increased recreational use in Western societies. The popularity of LSD has persisted since the 1960s, and contemporary research is showing that the drug has benefits and efficacy that is not currently present in other government approved pharmacological treatments, specifically in treating anxiety, depression, addiction, cluster headaches, and PTSD. The book discusses the importance of the drug to modern medicine and how to manufacture pure, unadulterated LSD that allows chemists to synthesize the drug easily and undetected by government authorities.