Atlas Shrugged is a 1957 novel by Ayn Rand. Her fourth and final novel published during her lifetime, it was also her longest, and the one she considered to be her magnum opus in the realm of fiction writing. Atlas Shrugged includes elements of science fiction, mystery, and romance, and it contains Rand's most extensive statement of Objectivism in any of her works of fiction. Rand described the theme of Atlas Shrugged as "the role of man's mind in existence". The book explores a number of philosophical themes from which Rand would subsequently develop Objectivism, including reason, property rights, individualism, and capitalism, and depicts what Rand saw as the failures of governmental coercion.
The book depicts a dystopian United States in which private businesses suffer under increasingly burdensome laws and regulations. Railroad executive Dagny Taggart and her lover, steel magnate Hank Rearden, struggle against "looters" who want to exploit their productivity. Dagny and Hank discover that a mysterious figure called John Galt is persuading other business leaders to abandon their companies and disappear as a strike of productive individuals against the looters. The novel ends with the strikers planning to build a new capitalist society based on Galt's philosophy.
Atlas Shrugged initially received largely negative reviews, but achieved enduring popularity and ongoing sales in the following decades. The novel has been cited as an influence on a variety of libertarian and conservative thinkers and politicians. After several unsuccessful attempts to adapt the novel for film or television, a film trilogy based on it was released from 2011 to 2014, and two theatrical adaptations have also been staged.