I really can't see that Axanar art book being OK if he's going to actually sell it. I think companies are a little more willing to turn a blind eye to stuff like that if it's something you're doing for free, but once you start actually selling it, then you've crossed the line. I could maybe see them letting it slide if it was someone who hadn't done this kind of thing before, but I really can't see them let Peters get away with this. Over in the Literature forum, there have been several instances where people have come across fan fiction being sold on places like Amazon, and it's then been reported so it could taken down since it's illegal to sell that kind of stuff. I'm pretty sure this would be the same kind of situation.