| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Smart Family's Passport | 978-1-59474-448-8 (1-59474-448-3) | 2010 | Nina Willdorf |
| The Smart Traveler's Passport: 399 Tips from Seasoned Travelers | 978-1-59474-177-7 (1-59474-177-8) | 2007 | Erik Torkells |