Who was the spymaster of the Third Reich? How did Nazi ideology influence intelligence collection? Katrin Paehler answers these questions with the first analysis of Office VI of the Reich Security Main Office in her new book The Third Reich’s Intelligence Service: The Career of Walter Schellenberg (Cambridge University Press, 2017). Tracing the development of a distinctly and catastrophically ideological approach to intelligence gathering through an institutional biography of the SS security service, its operations in Italy, and clashes with rival agencies inside Germany, Katrin argues that Shellenberg’s ultimate aim was no less than carving out of an independent foreign policy cast in Himmler’s worldview.Katrin Paehler is an associate professor of history at Illinois State University. She was also a member of the Independent Historians’ Commission of the German Foreign Office and Nazism and its Aftermath.Ryan Stackhouse is a historian of Europe specializing in modern Germany and political policing under dictatorship. His research exploring Gestapo enforcement practices toward different social groups is nearing completion under the working title Policing Hitler’s Critics. He also cohosts the Third Reich History Podcast and can be reached at john.ryan.stackhouse@gmail.com or @Staxomatix.