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".