Sitepoint consistently provides great information in their many tutorials, blog posts, forums and books. The CSS Anthology: 101 Essential Tips, Tricks and Hacks by Rachel Andrew looks to be no different. I gave them my e-mail address to view some sample chapters, and am happy that I did. The format of each chapter, and the problem-solution approach works very well for explaining how to use CSS, and how to get around many of the common mistakes made by developers and designers. Check out the table of contents to see all of the areas that the book covers.
While experienced CSS/XHTML developers may know the majority of the books contents, there are some good tips that may serve them well. Overall, I think this book will prove to be a great introduction to properly implementing Cascading Style Sheets for those who knew to the technology and concepts. This book should make a good companion to Eric Meyer on CSS.
Note: the book is much cheaper on Amazon: The CSS Anthology : 101 Essential Tips, Tricks and Hacks