Stephen Kotkin is the Birkelund Professor in History and International Affairs at Princeton University, where he directs the Princeton Institute for International and Regional Studies and co-directs the Program in the History and Practice of Diplomacy. He is also a senior fellow at the Hoover Institution at Stanford University. He was the business book reviewer for the New York Times Sunday business section (2006-09). His essays and reviews appear in Foreign Affairs, the Wall Street Journal, and the TLS. His Stalin: volume I: Paradoxes of Power, 1878-1928, was a finalist for the Pulitzer Prize.