Is this intended as an ad hominem? The profit-maker was the publisher. (It was written, after all, in England.) Marx did much writing (including for newspapers) for a fee. When he had a relatively big income he gave much of it to the workers' movement. He had a son who died because of Marx's low standard of living. read more
But regardless, whatever books and other things That people care to use may exist, won’t be sold for profit, or necessarily sold it all. Unless we have a market socialism but that’s another story. read more
At the time of his death (1883), Marx had prepared the manuscript for Das Kapital, Volume IV, a critical history of theories of surplus value of his time, the nineteenth century. The philosopher Karl Kautsky (1854–1938) published a partial edition of Marx's surplus-value critique and later published a full, three-volume edition as Theorien über den Mehrwert (Theories of Surplus Value, 1905–1910). read more
Marx’s masterpiece, Das Kapital, the “Bible of the working class,” as it was officially described in a resolution of the International Working Men’s Association, was published in 1867 in Berlin and received a second edition in 1873. read more