They Thought They Were Free is an eloquent and provocative examination of the development of fascism in Germany. Mayer’s book is a study of ten Germans and their lives from 1933-45, based on interviews he conducted after the war when he lived in Germany. Mayer had a position as a research professor at the University of Frankfurt and lived in a nearby small Hessian town which he disguised with the name 'Kronenberg.' 'These ten men were not men of distinction,' Mayer noted, but they had been members of the Nazi Party; Mayer wanted to discover what had made them Nazis. His discussions with them of Nazism, the rise of the Reich, and mass complicity with evil became the backbone of this book, an indictment of the ordinary German that is all the more powerful for its refusal to let the rest of us pretend that our moment, our society, our country are fundamentally immune.