This book investigates the absence of a unified legal definition for international organizations and proposes a new theoretical framework to address this ambiguity. Lorenzo Gasbarri, a scholar in international law, utilizes historical analysis and legal theory to evaluate how these entities operate within global governance. By synthesizing existing doctrines, he argues for a reconceptualization of international organizations as 'dual entities' to better reflect their complex legal status.

Legal scholars and practitioners identify this work as a significant contribution to the theoretical discourse surrounding international institutional law. Readers frequently note the academic density of the prose, which serves as a rigorous examination of the structural foundations of global governance.