I thoroughly enjoyed this book. It was extremely easy to read, informative without being too bogged down in 'science' and it was certainly thought provoking. Blum allows you to come to your own decisions about the rights and wrongs with regard to testing on primates and has obviously spent alot of time with the likes of Roger Fouts et al. She has also interview many advocates for primate testing and although no-one will persuade me that it is ethically, morally or scientifically sound to use any primate as a model for humans, it was interesting to hear the scientists' views and their defences. She tackles the AIDS and polio research with startling theories. Very thought provoking. I loved it.