| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1995 | 978-0-9525267-0-4 | John Lasarus Williams | Llanfair Pwllgwyngyll: Hen Enwau a Lluniau'r Lle |
| 1998 | 978-0-9525267-1-1 | '' | The Land of the Long, Long Name: North West Wales Companion |
| 2000 | 978-0-9525267-2-8 | '' | Syr John Morris-Jones (1864-1929) |
| 2003 | 978-0-9525267-3-5 | '' | Crwsâd trwy berswâd: hanes Undeb y Gymraeg a Sioe Gymraeg Porthaethwy |
| 2004 | 978-0-9525267-4-2 | Ibsen Henrik | Rhywun Wrth Y Drws |