His first book, Paper and Iron: Hamburg Business and German Politics in the Era of Inflation 1897-1927, was short-listed for the History Today Book of the Year award, while the collection of essays he edited, Virtual History: Alternatives and Counterfactuals, was a UK bestseller. In 1998 he published to international critical acclaim The Pity of War: Explaining World War One and The World’s Banker: The History of the House of Rothschild. The latter won the Wadsworth
Prize for Business History and was also short-listed for the Jewish Quarterly/Wingate Literary Award and the American National Jewish Book Award. In 2001, after a year as Houblon-Norman Fellow at the Bank of England, he published The Cash Nexus: Money and Power in the Modern World, 1700-2000.
He is a regular contributor to television and radio on both sides of the Atlantic. A prolific commentator on contemporary politics and economics, Niall is a contributing editor for Bloomberg TV.
In 2003 he wrote and presented a six-part history of the British Empire for Channel 4, the UK terrestrial broadcaster. The accompanying book, Empire: The Rise and Demise of the British World Order and the Lessons for Global Power, was a bestseller in both Britain and the United States. The sequel, Colossus: The Rise and Fall of the American Empire, was published in 2004 by Penguin, and prompted Time magazine to name him one of the 100 most influential people in the world. Two years later he published The War of the World: Twentieth-Century Conflict and the Descent of the West, a television adaptation of which was screened by PBS in 2007. The Ascent of Money: A Financial History