I do what feels natural, but I can't say I haven't thought about it.

Photographers have to impose order, bring structure to what they photograph. It is inevitable. A photograph without structure is like a sentence without grammar-it is incomprehensible, even inconceivable.

Photography is inherently an analytic discipline. Where a painter starts with a blank canvas and builds a picture, a photographer starts with the messiness of the world and selects a picture. A photographer standing before houses and streets and people and trees and artifacts of a culture imposes an order on the scene - simplifies the jumble by giving it structure. He or she imposes this order by choosing a vantage point, choosing a frame, choosing a moment of exposure, and by selecting a plane of focus.

I know that people think of my work from the '70s as American, but I've been going to other places for a long time.

I was photographing every meal I ate, every person I met, every waiter or waitress who served me, every bed I slept in, every toilet I used.

I don't have to have a single point of emphasis in the picture. It can be complex, because it's so detailed that the viewer can take time and read it, and look at something here, and look at something there, and they can pay attention to a lot more.

I think I misunderstood Instagram and just thought it was people photographing their friends, and discovered there were a number of people, a number of artists, who were taking it very seriously and doing very imaginative work with Instagram as the medium.