Joel Cook

I'm planning a 2013 trip going west. I've been a big fan of Route 66 for many years. Unfortunately, I've only done portions in Arizona. I have plenty of books on the history, but what I need is the definitive book re: Route 66 today. Including significant sites that are still standing, maps and suggested restaurants. If you have a book or other reference you've found helpful, would you be kind enough to share with me? Thanks, Joel