Capital: The Process of Circulation of Capital 2 was prepared by Engels from notes left by Marx and published in 1885. It is divided into three parts: The Metamorphoses of Capital and Their Circuits, The Turnover of Capital and The Reproduction and Circulation of the Aggregate Social Capital. In Volume II, the main ideas behind the marketplace are to be found: how value and surplus-value are realized. Its dramatis personae are not so much the worker and the industrialist, but rather the money owner (and money lender), the wholesale merchant, the trader and the entrepreneur or functioning capitalist.