Recent QOS Book

I know that everybody recommend the QOS Exam Certification Guide and I read it myself when I was studying for the ONT but it's quite an "old" book.
Now, I know QOS didn't change that much so that's not a big problem but I came across this book:
Amazon.com: Deploying QoS for Cisco IP and Next Generation Networks: The Definitive Guide (9780123744616): Vinod Joseph, Brett Chapman: Books
and I was wondering if anybody knew it and would recommend it?
I'm also considering getting this one to get a bit more knowledge about QOS on 6500 switches:
Cisco Catalyst QoS: Quality of Service in Campus Networks: Amazon.co.uk: Richard Froom, Mike Flannagan, Kevin Turek: Books
Any opinion on this one?
Now, I know QOS didn't change that much so that's not a big problem but I came across this book:
Amazon.com: Deploying QoS for Cisco IP and Next Generation Networks: The Definitive Guide (9780123744616): Vinod Joseph, Brett Chapman: Books
and I was wondering if anybody knew it and would recommend it?
I'm also considering getting this one to get a bit more knowledge about QOS on 6500 switches:
Cisco Catalyst QoS: Quality of Service in Campus Networks: Amazon.co.uk: Richard Froom, Mike Flannagan, Kevin Turek: Books
Any opinion on this one?
"Not everything that counts can be counted, and not everything that can be counted counts.”
Comments
Amazon.com: End-to-End QoS Network Design: Quality of Service in LANs, WANs, and VPNs
These are just basic observations without reading the new book though. Maybe someone here has read the book and can give some actual insight.
I've got this one already
I should have mentioned that I'm not looking at it for the QOS exam itself, I don't plan on taking it. It's more for real world use and for the CCIE Voice.
I do agree that it looks like a good read especially because the content is different than the QOS Study Guide.
Make sure you give us a good review if you do check it out!
I haven't see XR yet either and have very little prospect in working with it in the next year but it would be nice to see the comparison with IOS.
I haven't quite decided yet but will probably give it a try. I'll make sure to write a good (or bad...) review once I've read it.