| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-0-9706457-1-5 | Christine Durst · Michael Haaren | The Virtual Assistant's Pre-Launch Manual and Workbook |
| '' | 978-0-9706457-2-2 | Michael Haaren · Christine Durst | The Virtual Assistant's 'Building Your Client Base & Marketing 101' Manual and Workbook |