"An Occult Guide to South America" by John Wilcock, published in 1976, is a trade paperback book that delves into the mystical practices of South America. The book, written in English, explores the occultism and magic that permeates the culture and traditions of the region. Wilcock provides insight into the mysterious rituals and beliefs that have been passed down throughout South American history, making it a fascinating read for those interested in mysticism and the occult.