| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| El Idioma Es Musica: Mas de 70 Faciles y Divertidos Consejos Para Aprender Idiomas | 978-0-9820189-7-2 (0-9820189-7-5) | 2010 |
| Language Is Music: 0ver 100 Fun & Easy Tips to Learn Foreign Languages | 978-0-9820189-9-6 (0-9820189-9-1) | 2014 |
| Travel Happy, Budget Low: Over 200 Money Saving Tips to See the World | 978-0-9820189-8-9 (0-9820189-8-3) | 2009 |