(1990) He wrote and researched the book, "Europe in the Eighteenth Century."
(1992) He wrote and researched the books, "The British Abroad: The Grand Tour in the Eighteenth Century," and "Pitt the Elder."
(1994) He wrote and researched the books, "European Warfare 1660-1815," "Convergency or Divergence? Britains and the Continent," and "British Foreign Policy in an Age of Revolutions, 1783-1793."
(1996) He wrote and researched the books, "Maps and History," and "The Cambridge Illustrated History of Warfare."
(1999) He wrote and researched the book, "From Louis XIV to Napoleon: The Fate of a Great Power."
(2001) He wrote and researched the books, "Western Warfare 1775-1882," "The English Press 1621-1861," and "British Diplomats and Diplomacy."