1984 by George Orwell

The story takes place in a fictional future. The year is believed to be 1984, but this is uncertain. Much of the world is in perpetual war. Great Britain, now known as Airstrip One, has become a province of the totalitarian superstate Oceania, which is led by Big Brother, a dictatorial leader supported by an intense cult of personality manufactured by the Party's Thought Police. The Party engages in omnipresent government surveillance and, through the Ministry of Truth, historical negationism and constant propaganda to persecute individuality and independent thinking. Orwell described his book as a "satire", and a display of the "perversions to which a centralised economy is liable", while also stating he believed "that something resembling it could arrive". The novel examines the role of truth and facts within societies and the ways in which they can be manipulated. Parallels have been drawn between the novel and real-world totalitarianism, mass surveillance and violations of freedom of expression, among other themes. (Wikipedia)