Hyperallergic.com: "On January 1, a number of films, books, songs, and artistic works once protected by US copyright, and all from the year 1923, will suddenly be in the public domain. So starting today (January 1) anyone can freely read, cite, or republish.
That includes Marcel Duchamp’s original "The Bride Stripped Bare By Her Bachelors, Even (The Large Glass)”. Other books are Kahil Gibran’s The Prophet, Virginia Woolf’s Jacob’s Room, Agatha Christie’s The Murder on the Links, Marcel Proust’s The Prisoner (La Prisonnière, vol. 5 of In Search of Lost Time), William Carlos Williams’s The Great American Novel, H. G. Wells’s Men Like Gods, or any poem from Robert Frost’s Pulitzer Prize-winning compendium New Hampshire."
Read more here.