GIFTS OF SOBRIETY by Barabara S. Cole. Hazeldon publishes a whole slew of books and most of them are great. Caroline Knapp's DRINKING A LOVE STORY that has been suggested is one of the best I've read, too.
Eckhart Tolle's POWER OF NOW that Anna suggested absolutely changed my life. Definitely works the cause and not just the symptom! I had to force myself to keep reading it when I started because it just wasn't making sense, then a few chapters in it just completely hit me. Now when I re-read it, it makes total sense. Can't put it in words!
Lastly, HEALING THE ADDICTED BRAIN by Abraham Twerski, MD, and PLAYING IT BY HEART Melody Beattie.
I have a ton more. PM me if you run out--looks like you're overloaded for now, though.