The American Alec Soth is one of the world’s most celebrated photographers known for his intimate portraits of loners, dreamers and outsiders. He found fame with his 2004 series “Sleeping by the Mississipi”. And has since has worked for The New York Times Magazine, Fortune and Newsweek. His new exhibition Photography Is A Language opens this week in the Kunst Haus in Vienna’s 3rd district and it features several images from his latest project I Know How Furiously Your Heart Is Beating. That series includes many issues from Eastern Europe. Chris Cummins asked him why.