Tinker Tailor Soldier Spy is a 1974 spy novel by the author and former spy John le Carré. It follows the endeavours of the taciturn, ageing spymaster George Smiley to uncover a Soviet mole in the British Secret Intelligence Service. From Wikipedia
John le Carré's son continues the legacy with a new novel set between 'The Spy Who Came in from the Cold' and 'Tinker Tailor Soldier Spy'.
