Now would definitely be a great time to get into Batman. It looks like there's gonna be a few great Bat related books coming out in the relaunch with the main Batman title being a must buy. The creative team is A+. Plus you probably won't have to worry much about any of the past 5 years of Morrison crazyness. Of course, if you really like what you're reading you can go back to read that stuff. Batman is one of the series that isn't getting as heavy a retooling and most of the stuff from his past is gonna be canon and worth reading since a lot of it is good. But don't worry about that. For the sake of accessibility it probably won't be brought up much.
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Winter is coming