English language
Published July 18, 1990 by Houghton Mifflin Harcourt Trade & Reference Publishers.
Don Richard Riso: Understanding the Enneagram (1990, Houghton Mifflin Harcourt Trade & Reference Publishers)
- ISBN:
- 978-1-299-89733-5
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Understanding the Enneagram is the favorite Enneagram book of many because of its usefulness, variety of content, brevity, depth, and ease of use. It was originally conceived as a companion volume to the groundbreaking book, Personality Types, but is also a completely independent resource book, indispensable to anyone who wants to use the Enneagram and make applications of it in their lives and work.