The essays in this book discuss human behavior and the institutions of capitalism. The essays are non-technical and are written so as to be accessible to students of all disciplines and to all other persons interested in capitalism and in economic behavior. They often present unconventional views of the topics they discuss. Those containing unconventional views discuss self-interested behavior, selfish gene theory, the meaning and social function of private ownership, the externality problem, the nature of the firm and the rise of capitalism. The essays are not meant to be a textbook, but they offer a useful supplementary reading source for courses in business, economics and law that deal with human behavior in the marketplace and with capitalism, ownership, markets and firms.