The Nazi book burnings were a campaign conducted by the German Student Union to ceremonially burn books in Nazi Germany and Austria in the 1930s. The books targeted for burning were those viewed as being subversive or as representing ideologies opposed to Nazism. These included books written by Jewish, pacifist, religious, classical liberal, anarchist, socialist, and communist authors, among others.
On April 8, 1933, the Main Office for Press and Propaganda of the German Student Union proclaimed a nationwide "Action against the Un-German Spirit", which was to climax in a literary purge or "cleansing" ("Säuberung") by fire. Local chapters were to supply the press with releases and commissioned articles, sponsor well-known Nazi figures to speak at public gatherings, and negotiate for radio broadcast time. On the 8th of April, the Student Union also drafted the Twelve Theses which deliberately evoked Martin Luther and the historic burning of "Un-German" books at the Wartburg festival on the 300th anniversary of the posting of Luther's Ninety-Five Theses. The theses called for a "pure" national language and culture. Placards publicized the theses, which attacked "Jewish intellectualism", asserted the need to "purify" German language and literature, and demanded that universities be centres of German nationalism. The students described the "action" as a response to a worldwide Jewish "smear campaign" against Germany and an affirmation of traditional German values.