| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Clear Leadership: How Outstanding Leaders Make Themselves Understood, Cut Through the Mush, and Help Everyone Get Real at Work | 978-0-89106-152-6 (0-89106-152-5) | 2001 |
| Clear Leadership: Sustaining Real Collaboration and Partnership at Work | 978-0-89106-382-7 (0-89106-382-X) | 2010 |