This work investigates the evolution of diplomatic practices and the structural development of the international system from antiquity to the modern era. Adam Watson, a seasoned diplomat and scholar, utilizes his extensive background in foreign service to analyze how states interact within a global framework. He argues that diplomacy is not a static set of rules but a dynamic process that adapts to the shifting power structures of the international community. The text provides a comprehensive historical analysis of how the 'diplomatic society' emerged and how it continues to function in a contemporary global context.

Experts and academics frequently cite this work as a foundational text for understanding the historical development of international relations. Readers often note the scholarly density of the prose, which provides a rigorous examination of diplomatic history for students and researchers alike.