In his works, Jonas often focuses on isolated communities and enclaves. He has received numerous awards, including the 2003 Infinity Award from the International Center of Photography, New York, and second place in the Daily Life Stories for World Press Photo, as well as first prize in the Pictures of the Year International Awards. His documentary of life in a Nairobi slum, Kibera, published in the Paris Review, won a National Magazine Award in 2007.