6. a small strip of coloured cloth signifying membership of an order or award of military decoration, prize, or other distinction. 7. a small, usually looped, strip of coloured cloth worn to signify support for a charity or cause: a red AIDS ribbon.
The books burned were Jewish, Marxist, Bolshevik, or other disreputable or non-German books. These included the works of Heinrich Heine, Sigmund Freud, Thomas Mann, Erich Maria Remarque, Albert Einstein, Walter Benjamin, Karl Marx, Jack London and Margaret Sanger.
Examples include obliteration of the Library of Baghdad, the burning of books and burying of scholars under China's Qin Dynasty, the destruction of Aztec codices by Itzcoatl, and the Nazi book burnings. Book burning can be an act of contempt for the book's contents or author, and the act is intended to draw wider public attention to this opinion.