| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Monsieur Mackintosh: The Travels and Paintings of Charles Rennie Mackintosh in the Pyrenees Orientales 1923-1927 | 978-1-905222-36-0 (1-905222-36-X) | 2006 |
| On the Trail of King Arthur: A Journey into Dark Age Scotland | 978-1-908373-15-1 (1-908373-15-6) | 2013 |