| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Hidden Leader: Discover and Develop Greatness Within Your Company | 978-0-8144-3399-7 (0-8144-3399-5) | 2015 | Laurie Sain |
| The Inspiring Leader: Unlocking the Secrets of How Extraordinary Leaders Motivate | 978-0-07-162124-3 (0-07-162124-5) | 2009 | John Zenger · Joseph Folkman |