| title | ISBN-13 | year of publication |
|---|---|---|
| Bringing Out the Best in Everyone You Coach: Use the Enneagram System for Exceptional Results | 978-0-07-163707-7 | 2009 |
| Bringing Out the Best in Yourself at Work: How to Use the Enneagram System for Success | 978-0-07-143960-2 | 2004 |
| Consulting with the Enneagram | 978-0-692-41269-5 | 2015 |
| Le leadership: Identifier ses talents et les développer avec l'Ennéagramme | 978-2-7101-1956-2 | 2008 |
| L'ennéagramme: Se connaître pour réussir | 978-2-7101-1902-9 | 2007 |
| The Enneagram Development Guide | 978-0-615-34250-4 | 2010 |
| What Type of Leader Are You? Using the Enneagram System to Identify and Grow Your Leadership Strengths and Achieve Maximum Success | 978-0-07-147719-2 | 2007 |
ESF Editeur · McGraw-Hill · Various small imprints