Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A lot to think about...and HOW to think about it.

A single volume can't do a subject like "evil" any justice. But this comes pretty close. Good overall view of how to approach the topic, the contemporary and traditional views of sources of evil, and how dangerously close we could get to allowing atrocious episodes take place under our noses...and even how we've allowed it to happen anyway (Rwanda)...