| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2003 | 978-0-9546088-0-4 | Charlie Luis De Wirtz | Spanish with Carlos: Self-study Spanish course for beginners |
| 2005 | 978-0-9546088-3-5 | Claire Meeson | Vital Spanish: For Those Essential Everyday Situations |
| 2007 | 978-0-9546088-4-2 | Charlie De Wirtz | A Sense of English: Conditionals and Modal Verbs |