Beust · John Wiley & Sons · The World Academy of Personal Development Inc.
| title | ISBN-13 (ISBN-10) | year of publica- tion | |
|---|---|---|---|
| Bestmögliches Denken | 978-3-89530-034-9 (3-89530-034-9) | 2000 | |
| Optimal Thinking Emotional Mastery Wallet Cards | 978-0-9653823-0-4 (0-9653823-0-3) | 2005 | |
| Optimal Thinking: How to Be Your Best Self | 978-0-471-41464-3 (0-471-41464-6) | 2001 |