It is not every literary novice, blushing diffidently over her first manuscript, who easily finds a publisher, still less one prepared to pay an advance of several million pounds. But not every first author has such a story to tell as Margaret Thatcher, the longest-serving British prime minister of the twentieth century. It was the previous record holder, Asquith, who first established the notion that retired prime ministers write their memoirs, and he did so under a twin motivation which was not peculiar to himself. He sought vindication and he was after the money.