The other striking absence is literature. According to Oechsner, Hitler owned all the Wild West adventure stories by Karl May, all the detective fiction of Edgar Wallace, and many love stories by Hedwig Courths-Mahler (a German Barbara Cartland), but nothing that could send the imagination along unfamiliar tracks. Hitler’s mental world seems to have had no place for imagination. Instead, he relied on a naive conception of science, on which he claimed that National Socialism was based.