The Province of Jurisprudence Determined (1832) is a classic of nineteenth-century English jurisprudence, a subject on which Austin had a profound impact. His book is primarily concerned with a meticulous explanation of most of the core concepts of his legal philosophy, including his conception of law, his separation of law and morality, and his theory of sovereignty. Almost a quarter of it consists of an interpretation and defence of the principle of utility. This edition includes the complete and unabridged text of the fifth (1885) and last edition. The comprehensive introduction discusses Austin's life, the main themes of his book, leading criticisms of his ideas, and interpretations of his legal philosophy. The edition also includes a bibliography and biographical synopses of the principal figures mentioned in the text.