| Titel | ISBN-13 (ISBN-10) | Erschei- nungsjahr | andere Autoren |
|---|---|---|---|
| Skillful: Level 1 - Reading and Writing / Teacher's Book with Digibook access and Key | 978-3-19-312576-7 (3-19-312576-8) | 2013 | Dorothy Zemach |
| Skillful: Level 4 - Listening and Speaking / Teacher's Book with Digibook access, Key and 2 Class Audio-CDs | 978-3-19-432576-0 (3-19-432576-0) | 2014 | Lara Storton |