4.5 
 It's an excellent book, well written in the first person. It's a estrange, discontinous dialogue between Clay and the girl talking in the tapes, but that's what makes the book interesting and new. Wanting to know which one was the next story/reason for what Hannah did thrill me and I couldn't stop reading. I could hardly wait until Clay's tape. 
 Probably because it is in English and I'm quite weak here, I couldn't identify the moral of the story very clearly. It was dim in a lot of excuses and "reasons". I felt sorry for Clay when he began to feel responsible and that's where I think the story wasn't very clear at the end. The responsible one was Hannah herself and nobody else. But like I said, probably my English didn't help to get that part (I should read it in Spanish, perhaps I change my mind about that). 
 In my opinion the book represents quite good the systems theory in a lay way. It wasn't written with that objective, but I think it's a good example for this theory: what does the system to the individual and the other way around? I will give the book to my boyfriend and see what he has to say... He's the expert about this theme. 
 Anyway, the book is good and I recommend it to everybody, even if you don't like YA literature.