John Maynard Keynes Is Arguably The Most Important And Influential Economist Of The Twentieth Century, And Stands Alongside Adam Smith And Karl Marx As One Of The Most Famous Economic Thinkers Of All Time. Keynes's Radical Reassessment Of The Accepted Principles Of Economics Led To New Ways Of Thinking About How To Deal With Financial Crises And Economic Depressions, And Encouraged Governments To Increase Levels Of State Investment To Create Economic Growth. This Historical Biography Shows How Keynes Was More Than An Academic Theorist And How His Policy Proposals Had A Significant Impact On The Economic And Financial Architecture Of Many Western Countries From The 1920s Onward, And On The Post-war International Financial System.