To be honest, I have never touched an HTML or CSS book so I can not give you any pointers.
My 2 cents: If you buy any more books on HTML, get one that is deals with XHTML!
I highly recommend
http://www.echoecho.com/ for a great reference on HTML tags, CSS, and JavaScript
I would highly recommend reading reviews on books at Amazon before you buy them or goto the store and start reading them. Amazon even lets you look through the first few pages of them.
I can point out very good books with JavaScript, but not HTML ad CSS..
Eric