We love books about writing!
Here are a few suggestions . . .
For general writing, how about these two classics from Stephen King and Anne Lamott?
On Writing: 10th Anniversary Edition: A Memoir of the Craft by Stephen King
Bird by Bird: Some Instructions on Writing and Life by Anne Lamott
If you need to learn classic story structure, you can't go wrong with McKee's book. It's a thick book with everything you need to know about creating the form of a good, solid story.
If writing for children is your thing, try this annual guidebook, which is loaded with instructional articles, markets, contests, etc.
2011 Children's Writer's and Illustrator's Market
And for fun, try this PUNderful book by Avi . . .
A Beginning, a Muddle and an End (The Write Way to Write Writing) -- Avi
Please take a moment to share your favorite book(s) for writers in the comment section below. That way, when someone asks, "So, what would you like for the holiday?" we'll have a great resource from which to draw.