The book is based on real events that occurred in the US in the 70s: a teacher is planning a film about the rise of Nazism in Germany and the horrors of the death camps. Reactions are clear: how will he left the German people do? why nothing was attempted against the Nazis? how can they say that they do "not know"? The professor then launched into a full scale experiment to show students how the reality is not so easy. He made his class a united group and welded around simple precepts (Strength through discipline, community and action), experience working immediately, and even more than expected. The teacher will soon lose control of his pupils blinded by this sense of unity, that sense of getting things constructively, to the point of trying to rally the other classes to the Cause, to this feeling of elitism , even despise those who refuse to join the ... Is the History for recur despite the lessons of the past? ... So much for the background. The shape is simple, meanwhile, the style is not great, and if this book was a novel, it would be likely to think that nothing extraordinary. Yes but now, the experience has been conducted, and the book is closed in spring with a feeling of uneasiness. But bringing discomfort to reflection, and what could be better! ... Also, I will end by recommending parents to read to their children, because the simple style coupled with their teen characters will for sure a very interesting analysis of Nazism, let alone any mass movement. In short, a book to continue to remember.