- Young People Ask:Answers That Work (2011)
- The Great Escape:Adventures in the Hunt for the Missing Gnostics (2009)
- The Heretic:A Tale of Rebellion and Redemption (2008)
- Heroes and Heretics:The Genius and Fall of the Templar Knights (2007)
- Saving the Titanic (2005)
- Στο τέλος του κόσμου:The Visionary Adventures of Captain James Cook (2003)
- The King's Assassin:The Life and Death of Thomas De Maulfrugier (2002)
- Shadow Men:Inside the Covert Operations of the CIA and MI6 (2000)
- Hitler's Monsters:A Supernatural History of the Third Reich (1999)
Άρθρα περιοδικών:
- "The Mysterious Death of George Mallory" (2016)
- "The Search for the Lost Ark" (2015)
- "The Enigma of Easter Island" (2014)
- "The Holy Grail:Fact or Fiction?" (2013)
- "The Secret History of the Illuminati" (2012)
Τηλεοπτικά ντοκιμαντέρ:
- "Mysteries of the Ancient World" (2017)
- "Ναζιστική δεισιδαιμονία" (2016)
- "The Roswell Files" (2015)
- "In Search of the Lost Ark" (2014)
- "The Real Da Vinci Code" (2013)