Zbigniew Libera is one of the most important representatives of Critical Art, a photographer, filmmaker, and installation artist. In the 1980s he was convicted for opposition activity. Later he was associated with the alternative artistic circles of Łódź, a culture of rejects. He created his first video works during that time. In the 1990s he was recognized as a precursor of Critical Art, exposing the dominant ideology and its fabricated social and gender roles. His Lego Concentration Camp, shown at the Jewish Museum in New York in 2002, sparked an international debate on the limits of representation of the Holocaust.