A book with good intentions, good ideas and points to the weakness of the educational system, and it hurts! But this edition (which cost me 5) does not seem to know the footnotes of pages, or knows how to remove the title of the document that appears three times on every page! Suffice to say that reading is neither pleasant nor fluid. Sometimes I do not understand a sentence, even rereading it several times, because the "footnote page" had been many lines later, not where it was supposed to be (c ' ie outside the text). So yes for the book, but choose another edition!