I constantly read the old standbys....The AA Big Book, The NA Basic Text, the 12 and 12 and the It Works, How and Why. They're very helpful even if you're not a 12 step meeting person. The Al-Anon book is great, too. Someone once told me that there's not a problem that the Big Book doesn't have an answer to..and, if it doesn't..then it isn't a problem. I've found that to be true. Whenever I feel down, I usually find a personal experience story in the back of the Big Book or Basic Text that will encourage me.
Ginsa is absolutely right. I am also reading that same book. It's very very good. I highly recommend it. It's also helping me understand what is going on with my spouse who suffered a very bad childhood.