There are a lot of ways to talk about the life of a photograph. You can talk about the afterlife of a photograph, and in the end I talk about that, with the Richard Prince picture. But mainly, what I dedicated the book to being about was how photographs begin their life, and where they begin it. And they begin it with the photographer's imagination and instinct and experience.

It's a little bit like talking about the life of writing. The life of writing may be about many things, but it always begins with the writer. With the kernel of an idea, or a character, or an idea or a theme, or even an outcome. But for documentary photographers, photographs begin at that intersection of the real world and the imaginative inner world.

"You know you are seeing such a photograph if you say to yourself, "I could have taken that picture. I've seen such a scene before, but never like that." It is the kind of photography that relies for its strengths not on special equipment or effects but on the intensity of the photographer's seeing. It is the kind of photography in which the raw materials-light, space, and shape-are arranged in a meaningful and even universal way that gives grace to ordinary objects."

I had luck, but I worked hard and I suffered. It's not just photography I'm talking about. It's about whatever dream you want it to be.

First of all, I appropriate photographs.In presenting the Richard Prince photograph I tried to be as neutral as I could be. I put down the fact of it. I wanted it to be the same thing he wanted it to be, an open ended invitation to think about authorship, and who owns a created work. So I pair it with my appropriated picture.

For spiritual companions I have had the many artists who have relied on nature to help shape their imagination. And their most elaborate equipment was a deep reverence for the world through which they passed. Photographers share something with these artists. We seek only to see and to describe with our own voices, and, though we are seldom heard as soloists, we cannot photograph the world in any other way.

Aboriginal Australia is a tough place to work, rough and tough.