This description provides an overview of the national currency of Poland, the Polish złoty. It explains the history and current value of the currency, as well as how it is used in the country. It also provides information on how to exchange foreign currency for the złoty and
From Wikipedia
The złoty is the official currency and legal tender of Poland. It is subdivided into 100 groszy (gr). It is the most-traded currency in Central and Eastern Europe and ranks 20th most-traded in the foreign exchange market.