Mariusz Mazur is a historian from Maria Curie-Skłodowska University in Lublin, Poland. His research interests include the Polish People’s Republic, the post-Second World War anti-Communist underground in Poland, mentalities, totalitarianism and propaganda. His books O człowieku tendencyjnym … (2009) and Antykomunistycznego podziemia portret zbiorowy 1945-1956 (2019, 2020) were awarded with prestigious prizes.