The back of this book claims this is written for the 'Profession' level. I disagree, although I don't know who this is really intended for - newbies to OOA&D, maybe. I have a basic understanding of OO principles and have been programming with VB for three years. Besides the chapter on interfaces, inheritance and polymorphism there was nothing really new for me here and anything that was new was covered in such brevity as to be completely worthless (DHTML, ActiveX controls). Anything slightly technical was brushed off. In fact, it seemed most of the VB portions of this book was spent asking readers to read other books/articles to get the real facts (a thorough bibliography is a good thing but don't rely on it as the basis for your entire book).
Warning!!! - The first half of this book is about OOA&D (the GUIDS methodology) and has hardly any reference to VB. The GUIDS methodology would only be useful to someone who is completely new to OO concepts. In other words there is nothing new here.
I think this could be a better book if the VB portion of the book was expanded and GUIDS methodology portion was removed completely (maybe put it into its own book).
One final thing I found particularly offensive was the front cover which listed topics that were to be covered in the book. The majority of these topics were barely covered in any kind of depth (e.g. DHTML, IIS applications, 3-tiered components)- false advertising in my book.