| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1973 | 978-0-88890-010-4 | Gregory Clark | The Bird of Promise |
| 1974 | 978-0-88890-024-1 | Gregory Clark | Grandma Preferred Steak And Other Tales |
| 1975 | 978-0-88890-033-3 | '' | Fishing with Gregory Clark |
| 1976 | 978-0-88890-053-1 | Gregory (Greg) (foreword by Hugh Shaw) Clark | Things That go Squeak in the Night |
| 1978 | 978-0-88890-077-7 | Ends of Power | |
| '' | 978-0-88890-107-1 | Pepin Jacques | La Technique |
| 1979 | 978-0-88890-115-6 | Bill · Truscott, Steven Murray Trent | Who killed Lynne Harper? |
| '' | 978-0-88890-116-3 | Gregory Clark | Ten cents off per dozen: A Gregory Clark omnibus |
| 1988 | 978-0-88890-219-1 | Monique Bégin | Medicare: Canada's right to health |
| 1990 | 978-0-88890-229-0 | Craig MacLaine | This land is our land: The Mohawk revolt at Oka |
| 2004 | 978-0-88890-240-5 | Barbara McIntyre | Dare To Hope My Triumph Over Cancer |
| '' | 978-0-88890-242-9 | Barbara McIntyre | Dare to hope: my triumph over cancer |
| 2005 | 978-0-88890-243-6 | Gordon Lunan | Redhanded: Inside the Spy Ring that Changed the World |
| 2004 | 978-0-88890-244-3 | Carrie Holmes MacGillivray | The Shadow of Tradition, a Tale of Old Glengarry |
| 2005 | 978-0-88890-247-4 | Don Boudria | Busboy: From Kitchen to Cabinet |
imprints found for this ISBN range: Optimum Pub Intl · Infocor · Optimum Pub Co · Optimum Publishing International · Optimum · Optimum Publishing · Optimum Publishing Co. · Optimum Pub. International · Optimum Publishing Company · Optimum Publishing International Inc