In A Living Constitution or Fundamental Law?, distinguished scholar Herman Belz considers the concept of constitutionalism as the subject matter of constitutional history. Belz argues that the study of constitutionalism should be interdisciplinary, requiring the insights and methods of history, political science, and jurisprudence. Belz illuminates the evolution of American constitutionalism across the span of American history, from the Founding to Reconstruction to the Cold War and the rise of the bureaucratic state in the 1980s.

"Belz's highly readable and intelligent examination of the shifting meanings attached to constitutions demonstrates that the study of them has changed from 1787 through the Progressive Era, into World War II, and in the latter half of the 20th century. . . .A solid addition to collections on American History and constitutional law." - CHOICE, Vol. 36, No. 7

"A wonderful addition to constitutional studies." - Virginia Quarterly Review

"Belz offers some significant insights into the debates over constitutionalism. This is a solid work of scholarship and imagination. Putting essays together with a useful introduction has produced a valuable history of a current controversy that is as old as the Constitution itself." - The Historian

"Herman Belz has been writing influential works in constitutional history for several decades now, and he has here collected nine of his previously published essays, along with new introductory and concluding chapters. [Belz] address[s] a wide range of topics in constitutional history, including the founding; the rise and decline of 'constitutional realism' during the gilded age, the Progressive era, and the Cold War; 'the New Left attack on constitutionalism' during the 1960's; and the debates over constitutional history in the 1980's. The central organizing theme is what Belz characterizes as a cyclical struggle between written and unwritten conceptions of constitutionalism. A particular strength of Belz's essays is a sustained effort to take seriously the relative autonomy of law from the social and political forces and the role of the constitutional norms in American political development. . . ." - Law and Politics Book Review