Every once in a while you read a book you want to recommend to all of your friends. This one was one of them for me.
I have two words for you. Read it.
You can get it for free (and legally) online just by Googling it.
I did just so, but now after finishing it I'm going to go to a book store and buy a copy of it to keep in my shelf.
It is a young adult novel but offers some serious food for thought for older audience too. It's placed in a a present/near future environment but the theme is timeless.