Despite the importance of group communication processes, they remain elusive and difficult to understand, and the type of theory necessary to make sense of these processes differs from those commonly found in the social sciences. This collection of essays advances a unique perspective on group decision-making which is complementary to approaches taken in management, psychology and sociology. As the new edition of this book demonstrates, a number of strong theoretical frameworks have developed over the past 15 years together with considerable empirical evidence. The essays are distinctive both in their explicit focus on communication processes and in their location in a unique intellectual tradition. As such the book serves to forge a broader, more complete study of group processes.