Canadian David Barden (David Burdeny) photographed from a helicopter salt fields of Australia and North America, resembling the top of an unknown planet. "I'm interested in the space that has boundaries. In the pictures from the "Salt" you can see roads and drainage ditches surrounded by salt fields. Due to the different chemical composition of the soil of the field contrast with each other. It is an art. Stretched colored shapes, their rough outlines I refer you to the works of abstract painters – Mark Rothko, Clifford still, Richard Diebenkorn and Willem de Kooning," – says the photographer.