This is by far the best CSS & Dreamweaver book that I have ever read. I am an advanced user, very comfortable with CSS code and the Dreamweaver interface, but I still learned so many great tips and techniques.
Where this book shines is in teaching someone how to build standards compliant, accessible, search engine optimized, visually appealing, and cleanly coded websites using the Dreamweaver interface. I am not aware of any other book on the market that does that. Other Dreamweaver books seem to focus solely on the features of Dreamweaver without regards to standards, work flow, or the kind of code that the Dreamweaver will create if left to its own devices. It does not make sense, in my mind, to learn the product in a way that can't be used in the real world. Any reputable web designer uses the techniques discussed in this book, not all the built in options that make learning web design easy.
In regards to work flow, this book takes a case study approach. Each chapter is a project with a comp and an end goal. The reader gets to walk through all the pitfalls and browser issues that they would normally see when coding up their own sites. I think this makes the techniques easier to learn and makes the book an enjoyable read.
This book is not for beginners, if you aren't fairly comfortable with HTML and CSS, I would recommend Head First HTML, XHTML, and CSS. For advanced users, this book is really a fantastic teaching tool and reference.