* _All the Gallant Men: A Vietnam Novel_ (1996)
* _The Miracle Tree: A Novel of the Congo_ (2004)
* _The Unwanted: A Novel of the Donner Party_ (2010)
* _The Secret Life of Walter Mitty_ (2013)
Non-fiction
* _Journey into the Cold: Life and Death in the Canadian Arctic_ (1995)
* _The Battle of the Falklands: A War Between Friends_ (2007)
* _Churchill and Secret Service_ (2010)
* _The Assassination of Julius Caesar: A People's History_ (2015)