This book is a collection of essays on "The Theory of Archetypes" (Nova Science Publishers, 2004), a book which the author wrote. The Theory says that the human sense of self is an archetype, or original model, for thinking in the social sciences. It affects the way we see the world and the way we structure social behaviour and institutions. In this book the theory is applied to several new areas: an empirical study of decision making, the global economy, and the theology of the Christian trinity. It is hoped that the reader will find these essays both provocative and informative.