The underlying theme of Dan Cederholm's books is that craftmanship is the essence of good web design. The web craftsman seeks to ensure that each element of a design is built using robust code that will adapt to the requirements of different browsers and user display settings. Every aspect of the interface, no matter how small, deserves the designer's full attention and respect.
This concept is made explicit in 'Handcrafted CSS'. Through the book Dan quietly unfolds the most persuasive case I've yet read that web designers should be using CSS3 now to enhance designs for those browsers that can support it. He shows how to use incredibly useful CSS3 tools such as border-radius, rgba and transition effects without damaging the user experience of those with older browsers. There's also a very useful discussion of the merits of using the 'clearfix' method to clear floats: Dan supports it, but with some significant caveats.
As with his previous books Dan focuses on the design techniques that designers actually use, day-in-day out. Five years or so after their first publication his earlier books 'Web Design Solutions' and 'Bulletproof CSS' are still by my desk. 'Handcrafted CSS' is more of the same, and highly recommended.
As a bonus the book includes a fine chapter by Ethan Marcotte discussing fluid grid designs. If time or opportunity allowed a full book by Mr Marcotte would be most welcome!