This book by Jonathan Turner and Anthony Roberts proposes a new theoretical approach for explaining the dynamics of inter-societal systems. The authors argue that inter-societal systems have existed since the beginning of human societies and the dynamics of these systems are a fundamental property of the social universe. However, while world-systems analysis has emphasized this latter point, the authors argue the reluctance to theorize complex abstract models and systems of explanatory propositions on the dynamics driving inter-societal systems hinders scientific explanation of inter-societal...