After reading the two previous reviews I bought the kindle edition of this book. The first review for the paperback edition says that there are a lot of commentaries and clarifications; the second review for the kindle edition is more a lesson on Aristotle than a review of this book, but gives 5 stars. But notice that the kindle edition has ONLY the translation: no notes, no comments. In the description of the book there is no mention that the kindle version differs from the paper version, while this should be explicitely stated. Moreover, there are no active links in the table of contents. I give 2 stars (instead of one) only because I respect the work of the two translators, but Amazon should separate the evalutions of printed books and of kindle books, otherwise the average star rating has no meaning.