The Nazis burned books they deemed "un-German" during the 1930s, targeting works by Jewish, communist, socialist, and pacifist authors. Think Heinrich Heine, Karl Marx, and Albert Einstein. They also torched anything promoting liberal or "degenerate" ideas. Over 20,000 titles were destroyed in public bonfires, like the one in Berlin on May 10, 1933. Pure censorship. Got a specific author in mind?