 Marx’s critique of political economy remains controversial. He never succeeded in fixing and realising the wider project that he envisaged. Volume One of Capital, published in 1867, was the only significant part of the project published in his own lifetime, and even here he was unable to resist heavily reworking subsequent editions (especially the French version of 1872–75). What we now know as Volume Two and Volume Three of Capital were put together from Marx’s raw materials by Engels and published in 1885 and 1894, respectively, and Marx’s own drafts were written before the publication of Volume One and barely touched by him in the remaining fifteen years of his life. An additional three supplementary volumes planned by Engels, and subsequently called Theories of Surplus Value (or, more colloquially, the “fourth volume of Capital”) were assembled from remaining notes by Karl Kautsky (1854–1938), and published between 1905 and 1910. (The section of the “new MEGA”—see below—concerned with Capital-related texts contains fifteen thick volumes, and provides some sense of the extent and character of these later editorial interventions.) In addition, the publication in 1953—a previous two-volume edition (1939 and 1941) had only a highly restricted circulation—of the so-called Grundrisse (written in 1857–58) was also important. Whether this text is treated as a freestanding work or as a preparatory step towards Capital, it raises many questions about Marx’s method, his relation to G.W.F. Hegel (1770–1831), and the evolution of Marx’s thought. In contrast, the work of political economy that Marx did publish in this period—A Contribution to a Critique of Political Economy (1859)—was largely ignored by both contemporaries and later commentators, except for the, much reprinted and discussed, summary sketch of his theory of history that Marx offered in the so-called “1859 Preface” to that volume.