I knew I wanted to be some kind of artist from about 12. I met a neighbour who drew cartoons, and I had an idea I wanted to be a cartoonist - or something that involved Indian ink, at any rate.

When I first did the book on gasoline stations, people would look at it and say, Are you kidding or what? Why are you doing this? In a sense, that's what I was after: I was after the head-scratching.

I don't watch TV, so I feel like I'm left out of the American fabric or something.

The one thing I miss is hitchhiking. Now there's no more of that. When's the last time you saw a hitchhiker? It's not that I consider it a great sport, but it was my way of seeing the country. The open road, especially in the western United States, is still very pristine, but everything else around it has changed.

I knew I wanted to be some kind of artist from about 12. I met a neighbour who drew cartoons, and I had an idea I wanted to be a cartoonist - or something that involved Indian ink, at any rate.

I barely knew I wanted to be an artist. I liked my art classes and painting was fun, I guess, but I didn't realize that seeing the country was going to inspire me to further explore that... but that's what it did.

There was no hope for any kind of big opportunity. I'm not saying it was hopeless. The big pay-off was to work as an artist and gain some shred of respect from your friends, who were also artists. But there was never any notion that you could make a living out of art. On the rare occasions you had a gallery show, and sold a little work, well, that was just gravy.