Nazi art looting has been the subject of enormous international attention in recent years, and the topic of two history bestsellers, Hector Feliciano's The Lost Museum and Lynn Nicholas's The Rape of Europa. But such books leave us wondering: What made thoughtful, educated, artistic men and women decide to put their talents in the service of a brutal and inhuman regime? This question is the starting point for The Faustian Bargain, Jonathan Petropoulos's...