Mein Kampf. In his book Hitler made illuminating comments on 'the art of reading'. His was the attitude of total prejudice which only 'reads' what it already knows better, only absorbs what endorses its views, and resists any questioning of knowledge it has already absorbed. Evidently, moreover, he had read only Karl May, whom he even recommended to his generals as a model for the conduct of modern warfare, and Gustave le Bon, on whom especially he based the widely praised propaganda chapter of his book; see also Alfred Stein, 'Adolf Hitler und Gustave le Bon', "Geschichte in Wissenschaft und Unterricht, No. 6,1955.