| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1994 | 978-0-9644495-0-3 | Judith H. Graham · Daniel O. Graham | The Writing System Workbook |
| 1995 | 978-0-9644495-2-7 | Daniel O. Graham | Confessions of a Cold Warrior |
| 2002 | 978-0-9644495-7-2 | Daniel O. Graham · Judith H. Graham | The Writing System |