The German Ideology (German: Die Deutsche Ideologie) is a set of manuscripts written by Karl Marx and Friedrich Engels around April or early May 1846. Marx and Engels did not find a publisher, but the work was later retrieved and published for the first time in 1932 by David Riazanov through the Marx-Engels Institute in Moscow.
The multi-part book consists of many satirically written polemics against Bruno Bauer, other Young Hegelians, and Max Stirner's The Ego and Its Own (1844). Part I, however, is a work of exposition giving the appearance of being the work for which the "Theses on Feuerbach" served as an outline. The work is a restatement of the theory of history Marx was beginning to call the "materialist conception of history".
Since its first publication, Marxist scholars have found the work particularly valuable since it is perhaps the most comprehensive statement of Marx's theory of history stated at such length and detail.
The text itself was written by Marx and Engels in Brussels in 1845 and 1846 but it was not published until 1932. The Preface and some of the alterations and additions are in Marx's hand. The bulk of the manuscript is in Engels' hand, except for Chapter V of Volume II and some passages of Chapter III of Volume I which are in Joseph Weydemeyer's hand. Chapter V in Volume II was written by Moses Hess and edited by Marx and Engels. The text in German runs to around 700 pages.
Marx and Engels argue that men distinguish themselves from animals as soon as they begin to produce their means of subsistence; what individuals are coincides with their production in both how and what they produce. The nature of individuals depends on the material conditions determining their production.