Don Richard Riso

Don Richard Riso, M.A., is one of the foremost writers and developers of the Enneagram in the world today. The most-published and bestselling author in the field, he is president of Enneagram personality Types, Inc., and co-founder of The Enneagram Institute. He has been teaching the Enneagram for over twenty years and is a founding director of the International Enneagram Association. His four bestselling books are available in British, German, Italian, Japanese, Chinese, Korean, and Spanish editions. He was a Jesuit for thirteen years, holds degrees in English and philosophy, was elected to the Jesuit honor society, Alpha Sigma Nu, and was a Ford Foundation Fellow at Stanford in communication (social psychology).

Russ Hudson is one of the principal scholars and…