The major biographies of Hitler (Bullock, Fest, Kershaw, Ullrich) fail to address the constitution of the subject Hitler. This is no surprise, as bourgeois psychology offers no meaningful conceptual repertoire for biographical work and research. How did he become what he was? The question aims to consider Hitler not from the perspective of Auschwitz, but as a person who cannot be understood without the social conditions of his time. Klaus Weber examines the subjective scientific categories of Critical Psychology to see if they can conceptualize Hitler's life and personality. The guiding idea is Wolfgang Fritz Haug's motto: "Hitler changes the field into which he intervenes; the changed field changes him.".