I will start this review with this book is worth reading. Don't let my review detour you from reading it.
When I saw this book was in letter form I was excited. I love books that are like that even more if they are journal/diaries (i.e. Diary of Anne Frank). I figured since it was in that form it would be a fairly quick read for me. I just knew it would take me a matter of hours to finish it. Well that wasn't the case. It was a slow go from the beginning. I really had to force myself through most of the book. There is a point in the story that makes it a page turner. Sadly it was near the end of the book.
As far as the characters go I never really felt connected to them. I didn't really feel invested in them. Until the turning point I really had to force myself through the book. There were points were I was completely lost with what was going on. It may have meant to be that way. I finished the book with questions which annoyed me greatly. I don't think I ever really understood what was going on with Charlie. All in all it's a good book. I just think it could have been better.