| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Career Intensity: Business Strategy for Workplace Warriors and Entrepreneurs | 978-1-933683-00-3 (1-933683-00-7) | 2006 |
| The 60 Second Sale: The Ultimate System for Building Lifelong Client Relationships in the Blink of an Eye | 978-1-119-49976-3 (1-119-49976-3) | 2018 |