Sometimes the presence of a camera is like opening a door, because many people want what Andy Warhol called "15 minutes of fame." But prostitutes don't want that.

On one hand, prostitutes don't struggle because it's simply their life. In Mexico and elsewhere, once they get out of these places [brothels] they have a pretty square life. In Bangladesh it's different because they live in the brothel, it's sort of a prison, but still there are two sides. When they think of their religion and their upbringing, they can be very moralistic. They're moralistic about giving blow jobs. On the other hand, they have an everyday life where there's no room for shame.

Prostitution will always exist in every society, so I believe in a fair trade. Open the doors for women to earn their money without having pimps. The worst thing is to criminalize it, because then you open the doors for pimps, criminals, and trading.

I've made many documentaries, but prostitution was the hardest in terms of gaining the trust of the people being filmed.

The most important thing is to find people that you enjoy - friends that you enjoy playing music with.

In Bangladesh a prostitute normally wouldn't even undress for a man. He pays, she pulls up her sari, and he's done in 20 seconds.

Mostly I take photographs in times of research. Whores' Glory was shot in 30 days, 10 days for each segment, but the research for each part lasted a couple of months.