[SeanAppleby]

Eichmann in Jerusalem is the book that coined the phrase for anyone passing through, and it's a pretty wild story.

It's essentially Arendt, a Jewish exile from Berlin who fled the holocaust, wrestling with her realization that Eichmann, who reported to Hitler and organized major portions of the holocaust, wasn't a psychopath, but a completely mundane and thoughtless career focused bureaucrat who was trying to rise in government and believed in doing what you are told, who then organized one of the most evil acts in human history without reflecting on what he was doing.