I recently bought 7 books on Amazon and I will try to write a review of each as I read them. Note: this could take some time because of my workload.

The first one is Bulletproof Web Design by (the famous) Dan Cederholm of SimpleBits.
“The book contains several guidelines to help prepare compelling designs for worst-case scenarios, increasing user control and readability for varying text sizes and amounts of content.”
It explains clearly (as clear as a book can ever get) what best practices are for some common web design scenario’s. It is not a bible nor a reference: it roughly takes 10 common problems you may have experienced (or will someday) and tells you how do to this in a bulletproof way. Personally, I could also see benefits in taking one “project” (website) and applying all best practices to that one subject (for continuity), but the author chose to do this with separate examples. I guess the book benefits from that by the very low prerequisite knowledge you need to read it.
My main intention when buying this book was to verify if my xHTML & CSS knowledge was up to date by comparing it to Dan’s preachings. You can argue that this book isn’t the most appropriate since it was published in 2005 (although this is the second version, published in 2007) with techniques that could be outdated. I hardly believe this is an issue though. For example: a layout made with web standards for IE7, FireFox 2 and Safari 2 should not break on IE8, FireFox 3 or Chrome (note the “should” of course).
My opinion
A must read for anyone writing (x)HTML & CSS. I guarantee you will learn at least 5 important best practices or improve your knowledge of them which makes it worth every penny.
Most certainly if you ever wondered how to get those floating containers to do exactly what you want on every browser!