Don R Riso
Don Richard Riso is the world's leading author and inventor of the Enneagram. He is an globally known specialist on the subject and is the most widely published and bestselling author in the field. He is the founder of The Enneagram Institute and the president of Enneagram Personality Types, Inc.
- The Wisdom of the Enneagram: The Complete Guide to Psychological and Spiritual Growth for the Nine Personality Types
- Personality Types: Using the Enneagram for Self-Discovery
- Discovering Your Personality Type: The Essential Introduction to the Enneagram
- Understanding the Enneagram: The Practical Guide to Personality Types
- Enneagram Transformations