Eichmann in Jerusalem -- perhaps Arendt's most accessible volume -- is truly a masterwork. In addition to the copius summaries already given I would add several things. In this book, Arendt, a female Jew and Holocaust survivor, gets inside Adolf Eichmann's head. She begins speaking like him, losing her normally depressed and indignant tone (see Imperialism in _The Origins of Totalitarianism_ for classic examples) for a colder tone, Eichmann's tone, that doesn't feel affected, as one might suspect that it would. When Eichmann's sentencing comes around, Arendt herself seems to struggle a bit to regain her normal tone and condemn him to death herself. It feels as thought Arendt's empathy has led her to pity this man, rather than hate him. How can you kill someone you pity? This same dilemma, it seems, arises in her relationship with Heidegger, only she resolves it in the opposite direction.