By enabling the storage and transfer of purchasing power, money facilitates economic transactions and coordinates economic activity. But what is money? How is it generated? Distributed? How does money acquire value and that value change? How does money impact the economy, society? This book explores money as a system of "tokens" that represent the purchasing power of individual agents. It looks at how money developed from debt/credit relationships, barter and coins into a system of gold-backed currencies and bank credit and on to the present system of fiat money, bank credit, near-money and,...