earworms Learning · Earworms Musical Brain Trainer
| title | ISBN-13 | year of publication |
|---|---|---|
| Berlitz Language: Rapid French Vol. 1 | 978-1-905443-26-0 | 2008 |
| Berlitz Language: Rapid French Vol. 2 | 978-1-905443-27-7 | 2008 |
| Berlitz Language: Rapid German Vol. 1 | 978-1-905443-28-4 | 2008 |
| Berlitz Language: Rapid Italian Vol. 1 | 978-1-905443-24-6 | 2008 |
| Berlitz Language: Rapid Italian Vol. 2 | 978-1-905443-25-3 | 2008 |
| Berlitz Language: Rapid Mandarin Chinese Vol. 1 | 978-1-905443-32-1 | 2008 |
| Berlitz Language: Rapid Spanish Vol. 2 | 978-1-905443-23-9 | 2008 |
| Earworms: Rapid Spanish, Vol. 1 | 978-1-905443-22-2 | 2008 |
| Polish Berlitz earworms Rapid | 978-1-905443-41-3 | 2010 |
| Portuguese Berlitz earworms Rapid | 978-1-905443-42-0 | 2010 |
| Rapid Dutch, Vol. 1 | 978-1-905443-39-0 | 2010 |
| Rapid Greek Vol. 1 | 978-981-268-970-2 | 2011 |
| Rapid Japanese Vol. 1 | 978-981-268-971-9 | 2011 |
| Rapid Russian Vol. 1 | 978-981-268-972-6 | 2011 |
| Russian Berlitz earworms Rapid | 978-1-905443-44-4 | 2010 |