Coauthor Jeremy Narby became an early pioneer of ayahuasca research while living with the Ashaninca people of the Peruvian Amazon in the 1980sNarby's ayahuasca-themed book The Cosmic Serpent has sold hundreds of thousands of copies worldwideNarby speaks at conferences such as Bioneers, the World Ayahuasca Conference, and the Interdisciplinary Conference on Psychedelic ResearchPlant Teachers details a new perspective on tobacco's powers as a healing plant