Here. I'm currently working my way through his Parker series, written under his "Richard Stark" pseudonym. Twenty-two books! And a new one this month. The only thing slowing me down is finding some of the older ones without paying exorbitant amounts of money.

Even if he didn't intend it as such, he's got some good advice for today's young novelists:

If your subject is crime, then you know at least that you're going to have a real story. If your subject is the maturing of a college boy, you may never stumble across a story while you're telling that. But if your story is a college boy dead in his dorm room, you know there's a story in there, someplace.

And amazingly enough if you've read him, he doesn't do outlines. He just makes it up as he goes. Which helps him avoid writer's block:

It's different when you make it up as you go—that means you're going to get stuck. I wouldn't call it writer's block, I'd say, "I don't know where the hell this story is going." And that can go on for two, three weeks, during which I become increasingly difficult to live with. But then I either find where it's going to go, or I find what I did wrong 20 pages ago that made the trouble form.

Westlake Fun Fact: He wrote the pilot for Supertrain. I believe that's what they call "the exception that proves the rule."