This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I've not seen one. But if you have enough paper and laser toner you can print all of Dan Chisholm's excellent mock exams to be found at his site. But it's probably better to download them rather than use even more of the world's precious natural resources.