| Language of publication | Number |
| Total | 14278 |
| Czech | 12826 |
| Czech and other languages | 468 |
| English | 466 |
| French | 24 |
| Italian | 10 |
| German | 148 |
| Polish | 9 |
| Russian | 15 |
| Slovak | 108 |
| Spanish | 17 |
| Multilingual (except Czech) | 172 |
| Dutch | 4 |
| Classical Latin | 3 |
| Esperanto | 2 |
| Japanese | 2 |
| Chinese | 1 |
| Classical Greek | 1 |
| Old Church Slavonic | 1 |
| Ukrainian | 1 |