* The Fallow Land (2002)
* The Wilderness (2004)
* The Siege of Arundel (2006)
* The Last Citadel (2008)
* The Emperor's Blades (2011)
* Machine's Wake (2013)
* Black Tides of Heaven (2016)
* Defiant (2020)
Non-fiction
* A History of the Royal Navy: From the Anglo-Saxons to the Present Day (2010)
* The Discovery of the New World: Christopher Columbus and the Invention of America (2011)
* The Middle Ages: An Illustrated History (2012)
* The Age of Exploration: A World Transformed (2013)
* The Tudor Dynasty: A History of England's Most Infamous Royal Family (2015)
* The Stuart Dynasty: A History of England's Most Turbulent Royal Family (2017)
* The Hanoverian Dynasty: A History of England's Most Enlightened Royal Family (2019)