Short answers, pulled from the story.
The first organized attack on literature occurred on the 7th of March 1933 when a group from the Sturmabteilung raided a bookstore in Dresden. The nationwide purge officially began with an announcement by the German Student Union on the 8th of April 1933 calling it Action against the Un-German Spirit.
Over twenty-five thousand volumes arrived at Bebelplatz square near the State Opera where they burned alongside others from different locations. Approximately forty thousand people heard Joseph Goebbels deliver his address declaring no to decadence and moral corruption while students threw pillaged books into bonfires.
Banned works included writings by Jewish authors such as Albert Einstein, Sigmund Freud, Thomas Mann, Franz Kafka, and Erich Maria Remarque. American writers like Ernest Hemingway and Helen Keller also appeared on the list alongside Russian authors including Vladimir Lenin and Leon Trotsky.
Millions of books were destroyed resulting in an estimated eighty percent loss of school libraries across Poland. Three-quarters of scientific libraries in the country vanished under Nazi rule as part of a campaign of cultural genocide involving book burning.
Alfred Kantorowicz opened the German Freedom Library on the 10th of May 1934 one year after mass burnings began. An American version modeled after the Paris library opened at Brooklyn Jewish Center on the 15th of November 1934.