| title | ISBN-13 | year of publication |
|---|---|---|
| Red Hugh O'Donnell and the Nine Years War | 978-1-85182-887-6 | 2005 |
| Richard II and the Irish Kings | 978-1-84682-602-3 | 2016 |
| The Battle of Clontarf, Good Friday, 1014 | 978-1-84682-384-8 | 2013 |
| The Kings of Ailech and the Vikings: 800-1060 AD | 978-1-84682-836-2 | 2020 |