Sovereignty: A Contribution to the Theory of Public and International Law (The History and Theory of International Law) delves into the complex nature of sovereignty through the lens of Hermann Heller’s profound analysis. Written in 1927, this work stands at a critical juncture between legal theory and political philosophy, engaging directly with contemporaries such as Hans Kelsen and Carl Schmitt. Unlike his peers who aimed to resolve the inherent paradox of sovereignty—that it is both supreme authority and bound by law—Heller advocates for an understanding where these tensions are seen as integral to a lawful society. The book explores historical contexts, constitutional principles, and international legal frameworks, offering insights that remain relevant in today’s era of diminishing national sovereignty due to global governance structures and the rise of elite institutions. Heller’s argument for defending a legal conception of sovereignty in a pluralistic world provides a timely and compelling perspective on contemporary political challenges.