8vo. two volumes. Half-titles present in both volumes. [4], xliii, [1 blank], 435, [1 Table]; [4], 531, [1 Table] pages. Rebacked in modern half blue levant morocco over contemporary marbled boards, Spines stamped in gilt in compartments, burgundy gilt morocco lettering labels, five raised bands. Some minor rubbing to binding, a bit of foxing in text with some marginal notations in pencil throughout. This is Proudhon's magnum opus, his analysis of what he saw to be the economic contradictions of 19th-century capitalism, which he felt would lead in time to an anarchist society. Proudhon, the first self-proclaimed Anarchist, coined the term "Property is Theft." Although a sometime correspondent with Karl Marx, the two had a falling out after Marx vehemently criticized this work.