This comprehensive yet accessible introduction to the major economic philosophers begins with Adam Smith and continues through to the present day. It examines the contributions each one made to our understanding of the role of the economist, the science of economics and economic theory. Boxes in each chapter highlight little-known and entertaining facts about the economists' personal lives that had an influence on their work. The fourth edition adds coverage of modern monetary theory, the COVID-19 pandemic, climate change, minimum wage debates, Schumpeter and socialism, Malthus and immigration, and more. is a valuable, engaging text for courses in the history of economic thought and political economy.