| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| 25 Roses | Paperback | 978-1-4814-2420-2 | 2015 |
| 25 Roses | Hardcover | 978-1-4814-3133-0 | 2015 |
| Piper Morgan in Charge! | Paperback | 978-1-4814-5711-8 | 2016 |
| Piper Morgan in Charge! | Hardcover | 978-1-4814-5712-5 | 2016 |
| Piper Morgan in Charge! | Digital | 978-1-4814-5713-2 | 2016 |
| Piper Morgan Joins the Circus | Paperback | 978-1-4814-5708-8 | 2016 |
| Piper Morgan Joins the Circus | Hardcover | 978-1-4814-5709-5 | 2016 |
| Piper Morgan Joins the Circus | Digital | 978-1-4814-5710-1 | 2016 |
| The Popularity Code | Paperback | 978-1-5344-4519-2 | 2020 |
| The Popularity Code | Hardcover | 978-1-5344-4520-8 | 2020 |
Stefan Forss · Stefan Frech · Stefan Frick · Stefan Fricke · Stefan Frisch · Stefania Fiorucci · Stefanie Fricke · Stefanie Frisch · Stefano Fiores · Stefano Fiorucci · Steffen Fries · Steffen Furche · Stephan Fahrig · Stephan Faris · Stephan Fierz · Stephan Frisch · Stéphane Frioux · Stephanie Frase · Stephanie Freck · Stephanie Frisch · Stephen Farris · Stephen Ferris · Stephen Frech · Stephen Frosh