It's a pro-12 Step book written from the perspective of the atheist and the artist. Also, written primarily for subculture types, whether you be punk, nerd, metalhead, goth, whatever.
There's quite a bit in there about recovery and the creative person, you know, getting sober and getting back on stage again.
Here's an interview that explains a lot of it. I would say in more detail what it's about, but I just spent 35K words writing it.