High Quality Content by WIKIPEDIA articles! The Book of est is a fictional book about Werner Erhard`s Erhard Seminars Training (est), first published in 1976 by Holt, Rinehart and Winston. The book was written by est graduate Luke Rhinehart. Rhinehart is the pen name of writer George Cockroft. The book was endorsed by Erhard, and includes a foreword by him. Its contents attempts to replicate the experience of the est training, and the reader takes the place of a participant in the course. The end of the book includes a comparison by the author between Erhard`s methodologies to Zen, The Teachings of Don Juan by Carlos Castaneda, and to Rhinehart`s own views from The Dice Man.