Former Conservative prime minister Margaret Thatcher died on April 8th 2013 at the age of 87. Leading historians discuss her impact on British politics and the nature of her legacy. Following her death, historians and political scientists share their views on her legacy. Since Margaret Thatcher deplored the post-war consensus in life, it is arguable that there is no consensus about her in death. The longest serving prime minister, Margaret Thatcher was passionately loved and hated in equal measure. What should we make of Margaret Thatcher’s legacy? Many of Margaret Thatcher’s supporters have come to find the label of Thatcherism almost as useful as her opponents have done, despite the conflict between them over its precise meaning and certainly over the worth of her achievements. Much has been written about the nature of Thatcherism from a variety of perspectives. The aim of this piece of work is to examine and define the complex phenomenon called Thatcherism and its legacy. But to assess Thatcherism and Lady Thatcher’s legacy in such a brief space requires considerable compression and omission.