Joachim Clemens Fest was a German historian, journalist, critic and editor who was best known for his writings and public commentary on Nazi Germany, including a biography of Adolf Hitler and books about Albert Speer and German resistance to Nazism. He was a leading figure in the debate among German historians about the Nazi era. In recent years his writings have earned both praise and strong criticism.

Berthold Konrad Hermann Albert Speer was a German architect who served as the Minister of Armaments and War Production in Nazi Germany during most of World War II. A close ally of Adolf Hitler, he was convicted at the Nuremberg trial and sentenced to 20 years in prison.