Whale Done! (Unabridged)
2002
Coaching from the Heart: How to Inspire Greatness in Others
2014
Der Minuten Manager und der Klammer-Affe: Wie man lernt, sich nicht zu viel aufzuhalsen
2024
Full Steam Ahead (Unabridged)
2003
Leadership by the Book: Tools to Transform Your Workplace (Abridged)
2000
The Leadership Pill (Unabridged)
2003