Nineteen Eighty-Four is a dystopian novel by George Orwell. As literary political fiction and dystopian science-fiction, Nineteen Eighty-Four is a classic novel in content, plot, and style. Many of its terms and concepts, such as Big Brother, doublethink, thoughtcrime, Newspeak, Room 101, Telescreen, 2 + 2 = 5, and memory hole, have entered everyday use. Nineteen Eighty-Four popularised the adjective Orwellian, which describes official deception, secret surveillance, and manipulation of the past by a totalitarian or authoritarian state. It was awarded a place on both lists of Modern Library 100 Best Novels.