| title | media type | ISBN-13 | year of publication | |
|---|---|---|---|---|
| Este no es mi bombín | Tapa dura | 978-84-940479-1-6 | 2013 | |
| Gdzie jest moja czapeczka | Gebunden | 978-83-60850-98-5 | 2012 | |
| I Want My Hat Back | Paperback | 978-1-4063-3853-9 | 2012 | |
| I Want My Hat Back | Hardcover | 978-0-7636-5598-3 | 2011 | |
| I Want My Hat Back | " | 978-1-4063-3683-2 | 2011 | |
| This Is Not My Hat: 1 | Paperback | 978-1-4063-5343-3 | 2014 | |
| This Is Not My Hat | Hardcover | 978-0-7636-5599-0 | 2012 | |
| This Is Not My Hat | " | 978-1-4063-4393-9 | 2012 | |
| We Found a Hat | " | 978-0-7636-5600-3 | 2016 | |
| We Found a Hat | " | 978-1-4063-4751-7 | 2016 | |
| Wo ist mein Hut? | Gebunden | 978-3-314-10117-5 | 2012 |
Candlewick · Dwie Siostry · Icaria · NordSüd Verlag · Walker