WordPress 2: Visual QuickStart Guide is a useful book to have next to you while you work on your blog.
This easy-to-follow, step-by-step guide shows you how to install, use, and customize WordPress to get the most from the software. Includes tips that explain why certain techniques are better than others, how to watch for potential problems, and where readers can find more information.
: is more oriented towards beginners, but has some useful information for intermediate users. Advanced users should look elsewhere.