What is a masterpiece? A perfect work, that it is necessary to add anything, take anything away! That's what this book! Not a word too much, not a missing sentence. Of course it's a little short, but this impression arises only because we would like the pleasure lasts longer. If I had to write this story I would have done 500 pages, full of repetitions, of about, unnecessary explanations! The author has written 50 pages, each more accurate than each other. Every word, every sentence, every letter could give rise to heated debate. To read once and never forget to read twice to be marked, to read three times to know by heart, to read all the time to never forget!