High Quality Content by WIKIPEDIA articles! Getting It: The Psychology of est is a non-fiction book by American psychologist Sheridan Fenwick, first published in 1976, analyzing Werner Erhard`s Erhard Seminars Training or est. It is based on Fenwick`s own experience of attending a four-day session of the est training, an intensive 60-hour personal development course in the self-help genre. Large groups of up to 250 people took the est training at one time.