The Book of Est

The Book of Est was written by George Cockcroft under the pen name Luke Rhinehart. It was published in 1976, is now out of print and has been omitted from "also written by" lists in later books..

Erhard Seminars Training, or est, described itself as a psychological and philosophical tool, supposedly based on the works of the philosopher Heidegger, and was started by Werner Erhard, a former Scientologist.

Some current training courses contain concepts from est. The most notable is by Landmark Education, which bought the rights to the material from Werner Erhard and Associates

The book purports to represent the experience of the original est seminars, written by one who went through them. It shows them in a positive light, and describes how the ideas and the training affected the author as he went through the course. A section towards the end of the book discusses the background to some of the ideas in it.