You Only Live Twice is the twelfth novel in Ian Fleming's James Bond series. First published by Jonathan Cape on March 16, 1964, it holds the distinction of being the last novel written by Fleming to be published in his lifetime. The novel The Man with the Golden Gun (1965) and the short story collection Octopussy and The Living Daylights were later published posthumously.
You Only Live Twice is the concluding chapter in what is known as the "Blofeld Trilogy." The trilogy began with Thunderball, and, after the interlude novel The Spy Who Loved Me, resumed with On Her Majesty's Secret Service. It marks the final novel appearance of Ernst Stavro Blofeld and references to his criminal organisation, SPECTRE, in Fleming's novels.
In 1966, it was adapted by writer Roald Dahl as the fifth entry in the official EON Productions James Bond film series and first released theatrically on June 12, 1967. It starred Sean Connery in his fifth appearance as James Bond 007. Shortly after release, Connery stepped down from the role, leading to the hiring of George Lazenby for 1969's On Her Majesty's Secret Service. Connery later returned officially one last time in Diamonds Are Forever (1971). You...