| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Extreme Leaders: Achieve Extraordinary Results in Business | 978-1-119-38310-9 (1-119-38310-2) | 2017 |
| Extreme Leaders: Achieve Extraordinary Results in Business | 978-1-119-38313-0 (1-119-38313-7) | 2017 |
| Inspired Leadership: How You Can Achieve Extraordinary Results in Business | 978-1-119-38302-4 (1-119-38302-1) | 2017 |