Let me say this first: Alan Moore’s second novel is not an easy read. If you know the legendary comic writer’s work, you know that he’s far more concerned about his art than making sure everyone “gets it,” and in that respect Jerusalem may be his most challenging work ever. But like all of Moore’s best work, if you stick with it, you’re in for something special—an experience no other author could possibly provide.
Source: io9 – Get a Glimpse of Alan Moore’s Epic, Mind-Boggling New Novel Jerusalem