Best MacOS X Server book

For those who are familiar with MacOS X and would like to learn the server-side of the equation, this book is it. Apple's documentation has been sparse and this book covers that deficiency with great aplomb. This is the best Mac OS X Server book on the market right now. Too bad O'Reilly just cancelled the Tiger version because I would have first in line for the next edition.
http://www.afp548.com/article.php?story=20051221121321676
I hope they change their minds because it will certainly leave a big void in future MacOS X Server documentation.

Other Reviews

• Caution: Authorized IT personnel only
• No other OS X server book comes close
• This is a "must-have" book for all level users related to Apple systems administration.
• Best MacOS X Server book
• Not for Web Server help