Interest in The German Ideology has largely focused on the ‘chapter’ on Feuerbach—invariably the focus of the various abridgements in which the work is usually read. But this does not reflect the weighting of the text itself, which is dominated by Marx and Engels's critique of the radical egoist philosopher Max Stirner. Which begs the question: just why did they spend so much time and effort writing about Stirner? In this paper, I will provide an answer—which comes down to three (...) related points. The first concerns the critique of reason; the second, egoistic self-interest. On both of these two points, Stirner makes a novel contribution—contributions which Marx and Engels feel clear affinities with. However, Stirner can ultimately be seen to get these two points, as it were, the wrong way around. This then leads to the third point: Stirner's misunderstanding of the nature of Communism. To clarify the nature of Communism, then, Marx and Engels were compelled to turn Stirner on his head. (shrink)