I sent this email to Andy just after I started reading:
I got your CSS Mastery book from Amazon last week, and I just started reading it last night. I'm only 2/3 through the first chapter, but I have to say that your explanation of how CSS works is the clearest, most concise version I've read yet. For all the other books on CSS I've tried to work through, I think this is the first time I really "got it" and wasn't just following along with the examples, nodding with a blank stare on my face. Thank you, Andy Budd. You are a gentleman and a scholar.
I understand this book is meant as more of an advanced work, and some of the later chapters do assume more knowledge than is covered in the first two chapters that review the basics, but the writing is still very concise. I finally grasped a lot of CSS tricks that I had seen on the web before, but not quite "gotten" 'til now. Highly recommended.
Of course, now I should fix the CSS for images on the site so they don't stick out like a sore thumb (like this one's doing right now).