Editor's note: In addition to having outpaced other scary creatures in popularity (werewolves, for example), zombies prove that you don’t have to move fast to be powerfully terrifying. They’re also an eternal source of Halloween ideas, so next time you can’t decide what to wear to your cousin’s costume party, just take the word “zombie” and put any common occupation after it: zombie nurse, zombie fireman, zombie baseball player. See how easy? Enjoy our cool Zombie wallpapers!