Well that was depressing...I already knew the story line because I seen the movie when it came out on video. There were some changes from the book to the movie but have to say I liked the book better. 
 One thing that I thought was weird and I don't think I've ever seen it done before is that when any character spoke in the book, there were not quotation marks. I wonder why the author did that. 
 One thing that I didn't like about the book is that we really didn't get any background about what happened to the world and why it was like that. Maybe it was in there but I just don't remember. I did however like the relationship between the boy and the father. 
 There were some scary things that happened in the storyline and might be difficult from some people or even teens that might pick up this book (definitely for a more mature audience). 
 I can't remember how the movie ended but the book was sad but(view spoiler)[I'm glad that the little boy probably found the "good" guys that his father was always talking about (hide spoiler)].