Margaret Thatcher was the longest-serving Prime Minister of the twentieth century and one of the most influential figures of the postwar era. Volume One of Moore's authorized biography gives unparalleled insight into her early life, especially through her extensive correspondence with her sister, and recreates brilliantly the atmosphere of British politics as she was making her way, taking us up to the zenith of her power: victory in the Falklands. Based on unrestricted access to all Lady Thatcher's papers, unpublished interviews with her and all her major colleagues, this is the indispensable portrait of a towering figure of our times.