So I just finished Batman #13, and while I thought the issue was good, I'm struggling to understand why this was considered a masterpiece by most people who read it. Also, I heard that this was a revolutionary, never before done story of the Joker. I honestly didn't think it was that unique. Again I didn't dislike it, just didn't think it eclipsed Black Mirror as far as Snyder goes. Although, the back story is the best I've ever read.