Visionary Ayahuasca: A Manual for Therapeutic and Spiritual Journeys.Prepare for your first ayahuasca trip with this step-by-step guide book. The author is a European filmmaker who encountered this psychoactive vine while shooting a movie in Peru and stayed to learn all he could. A brew made of the vine causes hallucinations and is used in religious and medicinal contexts. (This book may contain a small, black sharpie mark on the bottom edge, so that it can't be returned to a different wholesaler.)