Since 2004 he has taught as Lecturer in Islamic Culture in Princeton"s Department of Near Eastern Studies, in addition to serving as consultative chairman of the Department of Islamic Art at the Metropolitan Museum of Art (2005-2009) and special consultant to the Aga Khan Trust for Culture since 2009. His most recent work is Kabul"s Long Shadows, published in 2011 by Princeton University"s Liechtenstein Institute on Self-Determination (LISD). This monograph, which summarizes Barry"s views on Afghanistan for the first time in English, addresses current United States. policy toward Afghanistan in light of the country"s political and cultural history, its tribal dynamics and the strategic concerns of the surrounding region.
Prior to coming to Princeton, Barry spent many years in Afghanistan with the International Federation for Human Rights, Médecins du Monde and the United Nations, working in often perilous conditions to provide and coordinate humanitarian assistance for the Afghan people from 1979 to 2001.
He holds an Bachelor of Arts in Near Eastern Studies from Princeton University, post-graduate degree in anthropology from Cambridge University, Master of Arts from McGill University and Doctor of Philosophy from the École des Hautes Études en Sciences Sociales in Paris.