Wow. Chyanna, who lent me the book, said it would start off slow, but to stick with it. She was right. It definitely started off slowly, but once you got into it, it was fascinating. About half way through the book, I had an inkling of how it would end, but it turned out worse than I expected. It was a really good book, told by letters written by Kevin's mother to his father, relating how she felt throughout Kevin's lifetime and things that she didn't think she could tell the father.
I recommend this book, and please, just like Girl with the Dragon Tattoo, work through the slow beginning because the rest of the book will make up for it.