I was really impressed with this book's combination of statistical evidence-based analysis, historical research, and personal/philosophical stories. It helps that I'm very strongly in favor of human rights prosecutions and knew the backstory of many of the cases she included. In particular, though, the use of hard data to back up a lot of the theories on the effects of prosecutions of heads of state made this book stand out as opposed to just an opinionated academic treatise on why trials are good (or bad). Also the fact that she then went on to look at the relevance for powerful countries rounded out the discussion well.