The Zen of CSS Design: Visual Enlightenment for the Web (Voices That Matter)
What a brilliant idea to generate interest in CSS: Build a page with HTML and loads of divisions and markup and then ask people to submit CSS to style it. The result is the beautiful Zen garden web site.
The book sets out to enlighten us with the variety of styles possible. Some are very outlandish but I must say, you can learn some very clever techniques from this book. The authors are the creators of a number of styles for the web site.