Christopher Browning is perhaps most widely known for his seminal study of the motives of the “ordinary men” who perpetrated the systematic murder of European Jewry at the behest of the Third Reich. Nevertheless, in the past two decades he has devoted much of his attention to studying the processes and decisions that led the Reich to make systematic mass murder its official policy and to provide the impetus and means for its implementation. Now he has brought his empirical findings and interpretations together in a single volume that provides the most rigorous, cogent, and lucid analysis currently available of this crucial problem in the history of the encounter between Nazi Germany and the Jews.