- _Death Of Hope_ (2004)
- _The Big Red Squirrel_ (2010)
- _The Long Silence:A Tale of the Somme 1916_ (2011)
- _Last Summer in the Old Green House_ (2012)
- _Under the Red Star_ (2013)
- _A Thousand Grains of Sand_ (2014)
- _The Price of Duty_ (2015)
- _The Shadow of Verdun_ (2016)
- _The Siege of Acre_ (2017)
- _The Siege of Jerusalem_ (2018)
- _A Song in a Season of Rain_ (2020)
- _The Red Prince_ (2021)
Non-Fiction
- _The History of Christianity_ (1997)
- _The Book of Genesis_ (2001)
- _The World in Which Jesus Lived_ (2003)
- _The Great Battles That Changed History_ (2018)
- _How the Bible Teaches Children to be Virtuous_ (2019)
- _50 Famous Men Who Changed the World_ (2019)
- _50 Famous Women Who Changed the World_ (2019)
- _50 Famous Christians Who Changed the World_ (2020)
- _50 Famous Inventors Who Changed the World_ (2020)
- _50 Famous Men Whose lives Inspired the Bible_ (2020)
- _50 Famous Women Whose Lives Inspired the Bible_ (2021)
- _50 Famous Men Who Inspired Historical Fiction_ (2021)
- _50 Famous Women Who Inspired Historical Fiction_ (2021)
- _The Story of the Bible: From beginning to End_ (2021)
- _The History of the Protestant Church: From Martin Luther to Today_ (2021)
- _The history of the Catholic Church: From the Apostles to Today_ (2022)
- _The History of the Crusades: From 1095 to 1291_ (2022)
- _The History of the Roman Catholic Church: From Martin Luther to Today_ (2022)
- _The History of the Christian Church: From the Apostles to Today_ (2022)
- _The History of the Early Christian Church: From the Apostles to Constantine_ (2023)
- _50 Famous Men of Adventure Who Inspired Historical Fiction_ (2023)
- _50 Famous Women of Adventure Who Inspired Historical Fiction_ (2023)