http://shop.oreilly.com/product/0636920012726.do

I haven't used it personally BUT it seems to cover most things I'd use these days, including "new" topics like grid, filters, etc. CSS is relatively simple so something of a reference with some examples would be great.

Try this: CSS: The Definitive Guide, Third Edition (http://oreilly.com/catalog/9780596527334/index.html)

and this: CSS Cookbook, Second Edition (http://oreilly.com/catalog/9780596527419/index.html)

These books are a pleasure to read and they are really cool.