The premise of the book is interesting: the girl who commited suicide leaves behind a number of tapes, each narrating events that happened to her that led up to her decision to take her life. 
 The book itself does not quite live up to this premise. 
 All throughout the book I expected something bigger, more earth-shattering, to happen to Hannah but it never did. It just seemed to be the culmination of a number of little reasons, the first few of which, at the very least, were very minor. Every girl has had rumours spread about her by a boy. 
 I think that the book probably appeals more to people who are emotionally scarred in a way similar to Hannah Baker (which I'm not, my emotional scarring is very different so I couldn't really connect with her) or people going through their own teenage angst (which, again, I'm not.) 
 My one biggest issue with the story was (view spoiler)[the cop out concerning Clay. He seemed to be a character that really was too sweet to be true. I would have liked him to have done something to Hannah without realising he was doing to it and not just the excuse of "honey, you don't belong". If he was on the tapes, he should have done something to deserve this position. (hide spoiler)] 
 I liked Hannah's voice. I preferred it to Clay's, which was rather weak in comparaison. The author has a tendency to tell not show with Clay's narrative, which put me off at first. It improved as the novel went on, but it was never as strong as Hannah's voice. 
 The message the book sends is a good one, one that should be kept in mind: our words and actions can affect other people's lives in unexpected ways. We should never take another person's presence in our life for granted.