First of all, this book should be called, "The Apache on Caldera Linux Web Administrators workbook". The information is heavily geard toward Caldera Linux and Apache, without any hints as to how the differences translate to other versions of Unix.
Second of all, I don't feel that most operations are explained in enought depth to give a webmaster any help. It's a good overview of how someone could set up a basic webserver for their home, but not nearly in depth enough for a professional admin. There's a lot of cross-references to other chapters that make you think a thought is going to be well explained somewhere else, but when you to look at the other chapter, you see no further explanation.
Then there's the random chapters on HTML. These pages should have been used to further delve into admin info, not developer info. If I cared about building webpages, I would have bought HTML in 21 Days. The demo pages used to demo your newly built website should've just come pre-built on the cd. If you don't know anything about webservers or Linux, this is probably the best book you could get. If you are a web admin, then you're better off getting a book on your flavor of Unix, and seperate documentation on your exact webserver.