95% of the books I read come from my awesome library system (all the regional libraries are hooked up and I can check out a book from any one of them and they will deliver it to mine for free), but I tend to buy LDS books. This year for Christmas I am getting two and I just ordered them.
First is the new Penguin release of the Book of Mormon. It is the last Joseph Smith edited version in the original paragraphing without all the extraneous material. It is a great resource at a great price - everyone should own one.
The second one is the new guidebook to the Doctrine and Covenants, Making Sense of the Doctrine & Covenants: A Guided Tour Through Modern Revelations by Steven Harper. It will give you a leg up on being the smart butt in the back row of Gospel Doctrine next year.