This long-awaited textbook provides a unified perspective of a rich and varied field. Using a set of illustrative examples, Decision Sciences synthesizes current research about different types of decision making, including individual, group, organizational, and societal. Special attention is given to the linkage between problem finding and problem solving. The principal message emerging from the book is that decision making entails a complex set of processes that need to be understood in order to develop sound prescriptions or policy advice.