Oh man, I just found about this tonight. I had no idea that they were doing a comic/graphic novel of this. And the first issue is only 4 days away! Check out Marvel's site for more info. Good luck though, Marvel's site has always been notoriously bad for straight answers. From what I can gather this is a 7 issue series that revolves around the flashbacks to Roland's gunslinger training. I'm guessing it's probably a little smattering of earlier training flashbacks and then the big flashback episode in Book 4. Doesn't really matter. Artwork looks so cool I'm going to have to comic-geek-up, and buy it.