| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Learn Cursive Handwriting | 978-0-939564-00-2 (0-939564-00-9) | 2008 | |
| Learn Time | 978-0-939564-13-2 (0-939564-13-0) | 1982 | Harriet Harrison ยท Lorette Sobol |
| Learn to Print | 978-0-939564-01-9 (0-939564-01-7) | 1985 | |