Amazon.com just posted my five star review of The Book of Xen by Chris Takemura and Luke S. Crawford. From the review:
The Book of Xen (TBOX) is a great book for Linux system administrators who want to deploy Xen. The authors ground their recommendations in over four years of experience running Xen to support Internet-facing virtual private servers. I found their writing style to be very engaging; it reminded me of reading any one of Michael Lucas' No Starch books. If you know your way around Linux and want to deploy Xen in production, TBOX is the book for you.
Thank you to No Starch for providing me a free review copy.