This is a pretty basic overview and not an in depth examination of some of the worst human beings in recorded history. Most of the information here, I've heard/read before. A few were new to me and the book's inclusion gave me a solid introduction. For those I was familiar with, I found nothing new or insightful, so I was eager to move on. The brevity, in some cases, was disappointing as it didn't really give an accurate depiction of the psychopath, or how they were 'the worst'. Overall, it's an interesting introduction in to this dark world for the novice reader.

I received a copy from the publisher through NetGalley in exchange for an honest review.