This unique study offers a comprehensive analysis of American jurisprudence from its emergence in the later stages of the nineteenth century through to the present day. The author argues that it is a mistake to view American jurisprudence as a collection of movements and schools which have emerged in opposition to each other. By offering a highly original analysis of legal formalism, legal realism, policy science, process jurisprudence has evolved as a collection of themes which reflect broader American intellectual and cultural concerns.