Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Haunting and informative

I read this book to get a glimpse into what would make ORDINARY individuals turn into effecient killing machines. I am brought up in a world where i look at crimes and say, "How can people do that?" So the point this book makes that anyone, including myself, is prone to this persuasion and moral altering is very powerful, and i found it interesting just how Himmler and his officials went about it.