| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Phonics | 978-1-57583-820-5 (1-57583-820-6) | 2005 |
| Prayers of My Heart | 978-1-59922-322-3 (1-59922-322-8) | 2008 |
| SING ALONG SONG 2PK | 978-1-59922-069-7 (1-59922-069-5) | 1999 |
LLC. Twin Sisters IP · T.S. · Tan Sağtürk · Timo Schuster · Tom Shuster · Twin Sisters Production · Twin Sisters Productions · Twin Sisters®