| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2006 | 978-0-9772169-0-1 | Tom Butler | Smart Selling! Your Roadmap to Becoming a Top Performer by Tom Butler (2006-03-01) |
| '' | 978-0-9772169-1-8 | Tom Butler | Winning Business from Difficult Competitors |
| 2007 | 978-0-9772169-2-5 | '' | Managing a Sales Team And Succeeding |