During her period as Prime Minister, Margaret Thatcher, had a profound and permanent impact on British politics. She changed the rules of political debate, transformed her own party, and altered and amended aspects of British life which had seemed fixed and permanent.

Love her or hate her, no one could be indifferent to her. No one could mistake what she believed in and what she stood for. A “conviction politician,” she had the rare distinction of having an ideology named after her — Thatcherism.