Small, Informative, and easy to use. It does everything it needs to do.

I would very quickly buy this book again.

I'm doing a lot of CSS work these days and figured this guide would be a good book to have on hand to quickly pull out when I can't remember a selector or how to write a certain pseudo-class, etc. And it *is* a decent little guide for the most part. It gives a short description of each element and what browsers support it (although no version information included) and even has a basic CSS tutorial included. Certainly not substitute for the full length book, but okay to quickly refer to.

The thing I didn't like about the book is that it just often seems to take a little time for me to find things in it. There are just so many different ways a "pocket guide" could be done that would make it a matter of seconds to find the element you need information on...with this one I'm often resorting to using the index to find what page it is on. Since the entire book is black-and-white and there's no page separation of element from element, it all just kinds of blends together and just visually is not very pleasing to use. If you are familiar with Visibone web developer cards/sheets I find those much more useful as a quick-reference due to how well the information is presented. While the material is not as comprehensive as what this book includes, I find myself pulling it out more often than this book simply because I can literally get the information I need in a second versus spending time just trying to locate it in this book.

So final score...it's a decent book and worth considering. If you've used other O-Reilly pocket books and like them, you'll probably like this as well. But I personally think there are easier "pocket guides" available.

I used this book as a reference to take a certification exam without ever touching CSS and scored in the 96th percentile... enough said.

Large books, by their very nature, can have good points and bad points. After all, if you have a couple or several hundred pages worth of material, you are bound to get some things right and some things wrong.
But these pocket reference books from O'Reilly are great. They aren't for learning, rather they are what they say they are: a pocket reference. (Nice to see some truth in advertising for a change.)
If you buy this book you will use it. A lot. Period.

Great little reference book. It is not intended to be a learning tool. If you want that, try the Head First book on HTML/XHTML/CSS that O'Reilly also publishes.

It's a super little time-saver, and also makes for a quick read when designing a new page or project, to see if something you haven't used previously could benefit your work.