Intro -- The General Theory of Employment, Interest and Money -- Context -- The author: John Maynard Keynes -- Context and background -- Summary of The General Theory of Employment, Interest and Money -- Keynes's critique of Say's law and the hypothesis of full resource employment -- Effective demand -- The propensity to consume -- The investment multiplier -- Keynesian interest rate theory -- The marginal efficiency of capital and the liquidity-preference -- The role of the state in cash and investment -- Impact of The General Theory of Employment, Interest and Money -- Keynesian economics today -- Keynes's legacy -- Summary -- Further reading.