The Walking Dead:
It has zombies so I dont think I really need to expand on the greatness of this book much. Basically imagine Dawn of the Dead minus the mall, but it doesn't end. This months issue (#48) basically kills off almost all of the cast to date. There are quite a few trades to catch people up, and I can't recommend this book enough. Even if you've never read comics period, or havent in like 12 years like me, you will love this. The characters are very fleshed out and very real. No mutants, no crazy powers, just real people that are very easy to get attached to.
I read this a couple months ago, and it was pretty good.