Das Kapital and preparatory work (especially regarding the theory of surplus value), the first volume appeared in 1867 as "The Production Process of Capital". After Marx's death in 1883, from manuscripts and the first volume Engels introduced Volume II: "The Circulation Process of Capital" in 1885; and Volume III: "The Overall Process of Capitalist Production" in 1894. These three volumes are collectively known as "Das Kapital". "Capital, Volume I" (1867) is a critical analysis of political economy, meant to reveal the contradictions of the capitalist mode of production, how it was the precursor of the socialist mode of production and of the
Capitalism to the 1660s; reference to "the unemployed" as a group was first made in 1782, and reference to "unemployment" as a general condition is first attested in 1888. The first recorded discussion of the reserve army of labor is in a manuscript written by Karl Marx: Marx introduced the concept in chapter 25 of the first volume of "Das Kapital", which states: His argument is that as capitalism develops, the organic composition of capital will increase, which means that the mass of constant capital grows faster than the mass of variable capital. Fewer workers can produce all that is necessary