I'm not actually sure how much (if any) reading he has done about it. I never broach the topic and when he does, I don't usually ask a lot of questions. I just try to be a good listener and support him. Sometimes I get really afraid of saying the wrong thing because when I do he just clams up completely.
It was only recently that I told him that I had been doing some reading. I wanted him to know that I was really trying to understand. He asked me what I had learned from my reading and I told him a few things. He said they were in line with what he was going through.
Even though I've done some reading though, I often feel really helpless. I care about him a lot and I really want to help him, but I don't always know how. Sometimes I just wish I had the right words to say.