| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Power of Three: Discovering What Really Matters in Life | 978-0-340-97991-4 (0-340-97991-7) | 2010 |
| The Spirit of Success | 978-0-340-82933-2 (0-340-82933-8) | 2005 |
| The Spirit of Success: How to Connect Your Heart to Your Head in Work and Life | 978-0-340-82932-5 (0-340-82932-X) | 2004 |