| title | ISBN-13 | year of publication |
|---|---|---|
| Prague Squared 1 | 978-1-320-81417-1 | 2015 |
| Prague Squared 2 | 978-1-320-81406-5 | 2015 |
| Prague Squared 3 | 978-1-320-81405-8 | 2015 |
| Prague Squared 4 | 978-1-320-78364-4 | 2015 |
| Tiny Prague 2 | 978-1-320-90594-7 | 2015 |
| Tiny Prague 3 | 978-1-320-90363-9 | 2015 |
| Tiny Prague | 978-1-320-20152-0 | 2014 |
B. C · B & E · C. Engel · P. C. · P. C. Engel · P.E. · P Engel