The seminal work on Ariosophy, The Occult Roots of Nazism by Nicholas Goodrick-Clarke, devotes its last chapter the topic of Ariosophy and Adolf Hitler. Not at least due to the difficulty of sources, historians disagree about the importance of Ariosophy for Hitler's religious views. As noted in the foreword of The Occult Roots of Nazism by Rohan Butler, Goodrick-Clarke is more cautious in assessing the influence of Lanz von Liebenfels on Hitler than Joachim Fest in his biography of Hitler.
