PiHKAL

PiHKAL (Phenethylamines I Have Known And Loved) is a book by Alexander and Ann Shulgin that details the chemical structures and subjective effects of a wide range of psychedelic compounds.

The book is known for its detailed accounts of the Shulgins' personal experiences with these substances, offering a unique perspective on the subjective effects of psychedelics.

It's a significant contribution to the field of psychopharmacology, though its accessibility has also raised concerns about potential misuse of the information.

The book's comprehensive approach to documenting the chemical and subjective aspects of these compounds has made it a controversial yet influential work in the field.

It remains a valuable resource for researchers and those interested in the history and effects of psychedelic drugs.