Rebecca West was a British author, journalist, literary critic, and travel writer. An author who wrote in many genres, West reviewed books for The Times, the New York Herald Tribune, The Sunday Telegraph, and The New Republic, and she was a correspondent for The Bookman. Her major works include Black Lamb and Grey Falcon (1941), on the history and culture of Yugoslavia; A Train of Powder (1955), her coverage of the Nuremberg trials, published originally in The New Yorker; The Meaning of Treason, later The New Meaning of Treason (1964), a study of the trial of the British fascist William Joyce and others; The Return of the Soldier (1918), a modernist World War I novel; and the "Aubrey trilogy" of autobiographical novels, The Fountain Overflows (1956), This Real Night, and Cousin Rosamund (1985).

Rebecca West was born Cicily Isabel Fairfield in 1892 in London, England, and grew up in a home full of intellectual stimulation, political debate, lively company, books and music. She had to leave school in 1907 due to a bout of tuberculosis. She chose not to return after recovering from the illness, later describing her schooling at Watson's as akin to a "prison".

West grew up in a home filled with discussions of world affairs. Her father was a journalist who often involved himself in controversial issues. He brought home Russian revolutionaries and other political activists, and their debates helped to form West's sensibility, which took shape in novels such as The Birds Fall Down, set in pre-revolution Russia. But the crucial event that moulded West's politics was the Dreyfus affair. The impressionable Rebecca learned early on just how powerful was the will to persecute minorities and to subject individuals to unreasonable suspicion based on flimsy evidence and mass frenzy. West had a keen understanding of the psychology of politics, how movements and causes could sustain themselves on the profound need to believe or disbelieve in a core of values—even in contradiction of reality.

West's parents had her baptised into the Church of England two months after birth and she considered herself a Christian, though an unconventional believer. At times, she found God to be wicked; at other times she considered him merely ineffectual and defeated. However, she revered Christ as the quintessentially good man, she had great respect for the literary, pictorial, and architectural manifestations of the Christian ethos, and she considered faith a valid tool to grapple with the conundrums of life and the mysteries of the cosmos.

Long time book reviewer and senior editor at TIME, Whittaker Chambers, considered West "a novelist of note ... a distinguished literary critic ... above all ... one of the greatest of living journalists."

Virginia Woolf questioned Rebecca West being labelled as an "arrant feminist" because she offended men by saying they are snobs in chapter two of A Room of One's Own: "Why was Miss West an arrant feminist for making a possibly true if uncomplimentary statement about the other sex?"

Bill Moyers's interview "A Visit With Dame Rebecca West," recorded in her London home when she was 89, was aired by PBS in July 1981. In a review of the interview, John O'Connor wrote that "Dame Rebecca emerges as a formidable presence. When she finds something or somebody disagreeable, the adjective suddenly becomes withering."

West suffered from failing eyesight and high blood pressure in the late 1970s, and became increasingly frail. Her last months were mostly spent in bed, at times delirious and other times lucid; she complained that she was dying too slowly. She died on 15 March 1983, and is buried at Brookwood Cemetery, Woking.