The results of searching for "English books": 4 English-speaking places
There are also organizations that speak other languages: Russian, Ukrainian, and German.
Franciszka Klimczaka 8 01-001 Warszawa Poland
Puławska 140 01-001 Warszawa Poland
Czerska 14 00-401 Warszawa Poland
Lipowa 22A 05-520 piaseczyński Poland