What’s on your SharePoint bookshelf?

Notice all the copies of SharePoint for Project Management? You know what they’re for, right?
There’s one missing from here, though: The Shepherd’s Guide to SharePoint 2007. Sorry Rob, I couldn’t find a way to insert an eBook onto my shelf.
What else is everyone finding useful?

Update: Rob sent me his bookshelf. Looks like he’s heavily vested in Wrox. I especially like the Michael Kay XSLT 2.0. It reminded me of old times ‘way back’ in 2001 when I was at the first XSLT conference in Oxford, England.
This could turn out to be fun. Maybe we should do a challenge: Email me your bookshelf. The image should be 525 pixels wide, max. Let’s see what you’ve got.