Zachary Karabell is the president of RiverTwice Research, where he analyzes economic and political trends. He is the author of several books, including Parting the Desert and Peace Be Upon You. Karabell's next book, In the Red will be published in the fall.
Maxwell Taylor Kennedy is currently an associate scholar at the John Carter Brown Library, a center for advanced research in history and the humanities at Brown University. His second book is Danger's Hour: The Story of the USS Bunker Hill and the Kamikaze Pilot Who Crippled Her.
Jonathan Kirsch is the author of 10 books on subjects such as religion and law, including the best seller A History of the End of the World. His most recent title is The Grand Inquisitor's Manual: A History of Terror in the Name of God.
Mark Mazower is the author of numerous books on 20th century European history. He also writes about world affairs for the Financial Times, among other publications. Mazower's most recent title, Hitler's Empire: How the Nazis Ruled Europe, is a 2008 Los Angeles Book Prize finalist in History.