TiHKAL

Alexander Theodore Shulgin was an American medicinal chemist, biochemist, organic chemist, pharmacologist, psychopharmacologist, and author. He is credited with introducing MDMA to psychologists in the late 1970s for psychopharmaceutical use and for the discovery, synthesis and personal bioassay of over 230 psychoactive compounds for their psychedelic and entactogenic potential.

Ann Shulgin was an influential author and researcher in psychopharmacology. She co-authored the seminal works PiHKAL and TiHKAL, along with The Commemorative Edition, which document the synthesis and effects of psychoactive compounds. Her books are essential reading in the field.