Mary Dennis is a writer who lives in New York City. She says: 'Living with two housemates, it is important to schedule our bathroom time and take turns cleaning it. I used to live in Beijing, where I had to use a public bathroom as my apartment didn't have a private toilet. While it was safe and relatively clean, I used to hate putting my coat on just to go to bathroom in the middle of night during winter. That experience made me really appreciate the privacy and comfort of having a clean toilet at home.' Water & Sanitation for the Urban Poor (WSUP) and Panos Pictures have documented women and girls and their toilet facilities in 20 countries across every continent to build a visual representation of the day-to-day reality and the effect this has on their lives, both positive and negative. Having access to a safe toilet facility can equal dignity, safety, education, employment and status. My Toilet: Global Stories from Women and Girls will be exhibited at the Royal Opera Arcade Gallery, London from 17th to 22nd November 2014.