| title | ISBN-13 | year of publication | |
|---|---|---|---|
| A Pug's Tale | 978-0-425-24119-6 | 2011 | |
| City Dog | 978-0-425-22143-3 | 2008 | |
| Fünfzehn Minuten verliebt: Roman | 978-3-453-35127-1 | 2006 | |
| If Andy Warhol Had a Girlfriend | 978-0-425-20024-7 | 2005 | |
| Pug Hill | 978-0-425-24852-2 | 2012 | |
| Pug Hill | 978-0-425-24505-7 | 2011 | |
| Pug Hill | 978-0-425-20971-4 | 2006 | |
| Through Thick and Thin | 978-0-425-21561-6 | 2007 | |
| You Tell Your Dog First | 978-0-425-25587-2 | 2012 |