| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Speak French in 15 Minutes | 978-0-9634055-1-7 (0-9634055-1-9) | 1992 |
| Speak Spanish in 15 Minutes | 978-0-9634055-0-0 (0-9634055-0-0) | 1992 |
| We Swam the Grand Canyon: The True Story of a Cheap Vacation that Got a Little Out of Hand | 978-0-9634055-9-3 (0-9634055-9-4) | 2008 |