As Peter Longerich's definitive biography of Joseph Goebbels is published in English translation, Stanford emeritus professor James J. Sheehan provides an overview of Goebbels' contributions to the Third Reich and reviews Longerich's efforts, including those involved in the heroic undertaking of evaluating Goebbels 32 volumes-worth of diary in the May 13, 2015 edition of The New York Times.