Poland is a member of the European Union and signatory of the Schengen Agreement. The list of countries whose citizens are not required to hold a visa when entering Poland can be found on the Visa-Free Countries web page of the Ministry of Foreign Affairs. 

If you need information how to obtain a visa to Poland, you should contact with Polish consulate in your country or visit the Entering Poland web page of the Ministry of Foregin Affairs.

A request for an invitation letter can be made by e-mail trefftzmfs2017@put.poznan.pl