We wrote a little while back about the preorders for World of Warcraft: The Ultimate Visual Guide. If you preordered, you should probably have your copy of the book by now, and if you didn't, it is now available for purchase. As far as Blizzard memorabilia goes, this is definitely one of the nicer ones. Coming from DK Publishing, it's a large, hardcover book with dozens of pages of full-color artwork, much of it previously unreleased. There's tons of lore for the story enthusiasts, including -- wait for it -- an official timeline of events, something many of us have been clamoring for for quite a while now. If you're a big WoW geek (like most of the staff here at WoW Insider) it wouldn't be surprising for this book to earn a place of pride on your bookshelves.
You can find World of Warcraft: The Ultimate Visual Guide at Amazon and Barnes & Noble.