Book About Free-Radius Configurations

Hello, I have some days out, but I'm back. I would like know if exists any book with examples and explications about freeRadius configurations and the RADIUS protocol. What you thinks about the book http://www.amazon.com/AAA-Network-Security-Mobile-Access/dp/0470011947/ref=p... Thanks, Inácio Alves http://www.polluxweb.com/inacioalves/site