A nice touch in this textbook is the practice tests with answer explanations.
Product Tag: Web / Blogging
256 Bloghacks, Paperback by Bugayenko, Yegor, Brand New, Free shipping in the US
What stands out about this textbook is the way it ties theory to everyday life.
WordPress: The Missing Manual by Matthew MacDonald
A nice touch in this textbook is the list of key people and their contributions.