Store — The Enneagram InstituteThe Offprint has sold 27, copies in Version 2. The RHETI is the acknowledged "gold standard" in Enneagram based personality tests, and is widely available in foreign translations Japanese, German, Dutch, Norwegian, and French, and Spanish among them and used in a variety of self-help, therapeutic, and business and organizational settings. Goodreads helps you keep track of books you want to read. Want to Read saving…. Want to Read Currently Reading Read. Other editions. Enlarge cover.
Enneagram Roadmap: Enneagram Subtypes
The Riso-Hudson Enneagram Type Indicator (RHETI, Version 2.5)
Don Richard Riso 17 January — August 30,  was an American teacher of the Enneagram of Personality who wrote and co-wrote a number of books on the subject. Riso grew up in New Orleans, Louisiana. He studied English and philosophy and received a M. In the early s, some members of the Jesuit order came in contact with the Enneagram material and it began to be taught in Jesuit and other Roman Catholic institutions in North America. In , as a Jesuit seminarian in Toronto , Canada , Riso first learned of the Jesuit teaching on the Enneagram which, he has said, "consisted of nine one-page impressionistic sketches of the personality types"  and fascinated him. In the following year, , he left the order and began developing the brief type sketches to more detailed descriptions.