Yantra, or Trulkhor, is the Tibetan Buddhist equivalent to the Hindu Hathayoga, and though there are many variants in different tantric circles, Master Chögyal sets out the version he has taught in the West since the early 1970s. The original Tibetan text The Oral Transmission of Vairocana is included, along with commentary, diagrams, and photographs. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)