I don't think it would surprise anyone to learn that Charles Addams was a major influence on the artistic style of a young Tim Burton. I'm sure Edward Gorey and Gahan Wilson were equally influential in terms of ghoulish silly sensibility, but when you look at the black and white line work of Charles Addams, you see the direct precursor to almost every one of Burton's signature quirks.
That's cool. Burton wears his childhood influences like an open book, like many great visual stylists do, and in his case, he's always been partial to a mix of the morbid and the hilarious. Addams is the master of that. I would argue that more people know his style from the original '60s TV show "The Addams Family" or the feature films that were made in the '90s than are actually familiar with his cartoons.
Understandably. Right now, the one place you can read the amazing work that Addams left behind is in those weird book things. The Addams family (the real one, not the creepy ooky kooky one) has worked hard to keep his work off of the Internet. There are only a handful of his hundreds of cartoons online, and since it's so important to the estate, I won't reprint one here as an example. The reality is, it's far more likely that people stumbled across the TV show or the movies or the animated cartoon versions that have existed at various times, simply because that stuff is actively out there, easy to stumble over.