The first time, I usually skim off the outer layer and end up with photographs that are fairly obvious. The second time, I have to look a little deeper. The images get more interesting. The third time it is even more challenging and on each subsequent occasion, the images should get stronger, but it takes more effort to get them.

The photographer Ruth Bernhard used to tell me that this is like asking somebody how they evolved their signature. It is not something I've ever worked on consciously. I think style is just the end result of personal experience. It would be problematic for me to photograph in another style. I'm drawn to places and subject matter that have personal connections for me and I photograph in a way that seems right. Where does it all come from, who knows?

I try not to make conscious decisions about what I am looking for. I don't make elaborate preparations before I go to a location. Essentially I walk, explore, discover and photograph.

My advice to any budding artist is never to be satisfied with imitating others. This is but a means to an end. A serious artist will work with intensity to discover themselves, their own personal vision. I believe this is a fundamental aspect of the creative path.

I often think of my work as visual haiku. It is an attempt to evoke and suggest through as few elements as possible rather than to describe with tremendous detail.

I enjoy places that have mystery and atmosphere, perhaps a patina of age, a suggestion rather than a description, a question or two. I look for memories, traces, evidence of the human interaction with the landscape. Sometimes I photograph pure nature, sometimes urban structures.

I don't have anything against colour. It is just not my first preference. I have always found black and white photographs to be quieter and more mysterious than those made in colour.