If you want to prepare the Voltaire certificate, master the intricacies of French grammar, this book is indispensable. It contains all the rules namely, examples, and many exercises. There in the end a practice test (with answers) to better prepare for the big day Only, in my opinion, the chapter on agreements of reflexive verbs is not very explicit. Is given clearer explanations on some websites. For optimum preparation for the exam I highly recommend, besides this book, the site "Project Voltaire" (Official Site Certificate Voltaire) and drives "Superior" and "Excellence". The cost is a little high but a good score on the exam is preparing conscientiously. For my part I got largely thanks to the book and the website, the level "Expert", which is the highest level. So please ;-)