Marcin Antosiewicz studied political science at universities in Warsaw, Kraków and Fribourg in Switzerland. He spent 15 years in the Polish public media, including as a TVP1 and TVP2 news reporter. He used to work as a foreign correspondent from London and Berlin, for Deutsche Welle, The Sun and WP Television. He has reported from countries including Nepal, Turkey, Egypt, Tunisia and Israel. Since October 2017, he has been teaching journalism students at the University of Warsaw and Vistula University in Warsaw. He writes for magazines including Newsweek Polska, Forbes Women, Press and Onet.pl.