If your Soviet neighbor is trying to set fire to your house, you can't be worrying about the Arab down the block. If suddenly it's the Arab in your backyard , you can't be worrying about the People's Republic of China and if one day the ChiComs show up at your front door with an eviction notice in one hand and a Molotov cocktail in the other, then the last thing you're going do is look over his shoulder for a walking corpse.

Zombie books were going to be my passion projects, but certainly not pay the bills. I thought I was going to have to get a real job on a sitcom or something, and have my zombie books to remind myself I was still a writer at heart. I never thought I could actually pay my bills and write what I wanted.

When I was 16, the first book I ever actually purchased with my own money, in fact, and had read on my own time was "Hunt for Red October" by Tom Clancy...

I think 'G.I. Joe' is a perfect example of how I'm the world's worst businessman. If I were smart, I'd be writing 'World War Z Part 12', but I have to go where the muse leads, and I've always been a huge 'G.I. Joe' fan. I always wanted to know more about these characters, these little plastic figures I played with as a kid.

Zombies let us explore notions of the apocalypse - no water, food, medical care, the government imploding - while letting us sleep at night.

Use your head; cut off theirs.

That's the thing about zombies. They don't adapt and they don't think. Literally, you could have a zombie on one side of a chain link fence and you could be on the other side and they could be trying to get to you and six feet down could be an open door and they will not go through that door in the fence. That's why they're so scary.