How to Think Like Leonardo da Vinci: Seven Steps to Genius Every Day (Unabridged)
2006
The Art of Connection: 7 Relationship-Building Skills Every Leader Needs Now (Unabridged)
2026
How to Think like Leonardo da Vinci: Seven Steps to Genius Every Day (Abridged)
2006
The Healing Organization
2019
Discover Your Genius (Abridged)
2005
Spiritual Insights Into the Genius of Leonardo da Vinci (Unabridged)
2000