It is the average school book given for typical reasons so that students can understand the grammatical phenomena of the ancient Greek language. And it fails miserably in that aspect as this particular book is not at all comprehensible and is also inconvenient for a school book. I am a third-year high school student and my book is untouched, and I have been forced to buy another one because as a student, I try to do substantial work in the shortest possible time in order to achieve a better understanding of the phenomena I encounter, but with this specific book, I am delayed significantly as the phenomena are mixed up within the book and I am delayed for the most insignificant thing. For a free book, it is good, but I would prefer to spend those three euros on a coffee instead of this book