Contents: The Nature of monetary economics -- Monetary standards -- The Classical theory of money -- Patinkin and the Walrasian heritage -- Keynes's general theory -- Portfolio theory -- Friedman,monetarism,and the quantity theory -- Money and exchange rates -- Rational expectations -- Optimal policy design -- Modelling the demand for money -- Demand for money and financial innovation -- The Transmission mechanism -- Monetary policy in practice -- Exchange rate and external arrangements -- Inflation control