约翰·勒卡雷，原名大卫·康威尔，1931年声誉英国。18岁被英国军方情报单位招募，担任对东柏林的间谍工作；退役后在牛津大学攻读现代语言，之后于伊顿公学教授法文与德文。1959年进入英国外交部，同时开始写作。1963年以第三本著作《柏林间谍》一举成名，知名小说家格林盛赞：“这是我读过的最好的间谍小说！”从此奠定文坛大师地位。

勒卡雷一生得奖无数，包括1965年美国推理作家协会的爱伦坡奖，1964年的英国毛姆奖、James Tait Black纪念奖，1988年获颁英国犯罪推理作家协会（CWA）终身成就奖，即钻石匕首奖（另外在1963年与1977年两次获颁匕首奖），以及意大利Malaparte Prize等等。2005年，CWA更是将其最高荣誉“金匕首奖中之奖”授予勒卡雷。至今已出版20部作品，已有11部被改编为电影和电视剧。

勒卡雷以亲身经历，加上独一无二的写作天赋，细腻又深刻地描写神秘而真实的间谍世界，塑造出一个个有血有肉的人物。两难的道德处境、暧昧的善恶定义，内容富含这里，情节引人入胜，读来欲罢不能，不愧为享誉全球的大师级作家！

A #1 New York Times Best-Seller

This is the first book of John le Carre's 'Karla trilogy' and features British master spy George Smiley. Somewhere at the very highest levels of British Intelligence there stands a double agent, a 'mole,' implanted deep in its fabric, perhaps decades ago, by Moscow Centre. He can only be one of five men--brilliant, complicated men, proven in action--who have worked closely together through the years, respecting and depending on each other, despite the central imperative of their profession to trust no one. Of these five, it is George Smiley, perhaps the most brilliant and complicated of them all, who is tapped to dig out the mole and destroy him. And so Smiley embarks on his blind night walk, retracing path after path into his own past--its aliases, covers, sleights of hand--burrowing into the dust of unresolved episodes. John le Carre's classic novels deftly navigate readers through the intricate shadow worlds of international espionage with unsurpassed skill and knowledge and have earned him--and his hero, British Secret Service agent George Smiley--unprecedented worldwide acclaim.