Whether John Locke's Two Treatises is a justification of revolution or a demand for revolution, it is a book about political revolution. Yet it is also a book about property. This is so not only because of the obviously central place that Locke's discussion of property holds in the Second Treatise but also because his account of when revolution is justified hinges, in three crucial respects, on his account of how private, or, exclusive, rights to property arise.