s. a. · S. Archer · Sebastian A
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Learn: Any Skill or Subject in 21 Days | 978-1-5150-7295-9 (1-5150-7295-9) | 2015 |
| Learn English: 300% Faster - 69 English Tips to Speak English Like a Native English Speaker! | 978-1-5141-7609-2 (1-5141-7609-2) | 2015 |