| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Decoding the Pictish Symbols | Paperback | 978-0-7524-5239-5 | 2009 |
| The Age of the Picts | " | 978-0-7524-4959-3 | 2009 |
| The Age of the Picts | " | 978-0-7509-1608-0 | 1998 |
| The Age of the Picts | Hardcover | 978-0-7509-0924-2 | 1995 |
| The Picts and Their Symbols | " | 978-0-7509-2207-4 | 1999 |