O.P. · Oleczak Piotr · Olszowka Piotr
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Kotek Mamrotek | 978-83-10-12791-4 (83-10-12791-X) | 2015 |
| Kraina zapomnianych zabawek | 978-83-62248-69-8 (83-62248-69-6) | 2015 |
| Morrigan | 978-83-62518-05-0 (83-62518-05-7) | 2011 |
Alegoria · COMM · Nasza Ksiegarnia