ISBN-13: 9780963009692 / Angielski / Miękka / 2002 / 804 str.
A continuation of PIHKAL, TIHKAL focuses on the family of psychoactive drugs in the tryptamine family and provides a blend of biography, botanical facts, scientific speculation, and psychological and political commentary written by renowned psychopharmacologist Alexander Shulgin and his wife Ann Shulgin.