The General Theory of Employment, Interest and Money is Keynes' masterpiece published right after the Great Depression. It sought to bring about a revolution, commonly referred to as the "Keynesian Revolution", in the way economists thought

especially challenging the proposition that a market economy tends naturally to restore itself to full employment on its own. Regarded widely as the cornerstone of Keynesian thought, this book challenged the established classical economics and introduced new concepts. It remains a relevant topic of debate to this day, perhaps more than ever.