| title | media type | ISBN-13 | year of publication |
|---|
| Agent M: The Lives and Spies of MI5's Maxwell Knight | Hardcover | 978-1-61039-684-4 | 2017 |
| Agents of Influence: A British Campaign, a Canadian Spy, and the Secret Plot to Bring America into World War II | " | 978-1-5417-4214-7 | 2019 |
| Churchill's Iceman: The True Story of Geoffrey Pyke: Genius, Fugitive, Spy | Paperback | 978-0-09-959413-0 | 2015 |
| Churchill's Iceman: The True Story of Geoffrey Pyke: Genius, Fugitive, Spy | Hardcover | 978-1-84809-443-7 | 2014 |
| In Search of the English Eccentric | Paperback | 978-0-7195-2222-2 | 2009 |
| In Search of the English Eccentric: A Journey | Hardcover | 978-0-7195-2212-3 | 2008 |
| Kierunek Bagdad | Taschenbuch | 978-83-7705-351-5 | 2013 |
| Misadventure in the Middle East: Travels as Tramp, Artist and Spy | Paperback | 978-1-85788-395-4 | 2007 |
| The Ingenious Mr. Pyke: Inventor, Fugitive, Spy | " | 978-1-61039-713-1 | 2016 |
| The Ingenious Mr. Pyke: Inventor, Fugitive, Spy | Hardcover | 978-1-61039-577-9 | 2015 |
| Together: How small groups achieve big things | " | 978-1-84854-055-2 | 2011 |
| Together: How small groups achieve big things | Paperback | 978-1-84854-056-9 | 2011 |