Excellent support for literacy. For the pronunciation of the letters and sounds. Depending on the level of the participants can be expanded with vocabulary and conjugation. I found this book by chance, but now all my students and my colleagues have also adopted it. I thoroughly recommend it (I even university interns, who appreciate the clarity of the explanations for the pronunciation.) Also the fact that the letters are blue no verdict, this facilitates learning reading. In short: after trying many different and varied books for alpha, I recommend this little book that has been proven!