Six decades after the defeat of National Socialism, commemoration and mourning are ongoing, open-ended projects in Germany and Austria, and continue to generate a steady stream of literature and film about the Nazi past that, while comparatively modest in volume, is often disproportionately influential in public debates. At the same time, new museums and memorials are being established all the time in what Andreas Huyssen has called a "memory boom," while what is remembered and how it is remembered is subject to continuous change. Scholars have to keep pace with each new development in this...