Recently got a copy of G-free Diet by Elizabeth Hasselbeck. I'm not a big fan of her in particular, but it's a great book, really explaining what gluten is, the difference between celiac disease and gluten intolerance, and all the places it hides (including the glue on envelopes! Maybe that's what poisoned George Castanza's fiancee on that episode of Seinfeld...).
If you've got an autoimmune disease, it's worth trying a gluten free diet for a few weeks to see if your symptoms subside. I've been gluten free for over 2 years and I'm doing well. I'm not on any immune suppressants, my kidneys are back to normal, no pleurisy (water on lungs), no joint pain or fevers. Gluten free is only one of the things i'm doing, but it is the one that takes the most vigilance.
This is a great book, easy to read and thorough.
