| title | ISBN-13 | year of publication |
|---|---|---|
| 26 Steps | 978-0-13-460007-9 | 2000 |
| 26 Steps: Controlled Composition for Intermediate and Advanced Language Development | 978-0-13-458787-5 | 1996 |
| 26 Steps: Controlled Composition for Intermediate and Advanced Language, Development and 10 Steps Controlled Composition for Beginning and Interm | 978-0-13-933722-2 | 1988 |
| 26 Steps: Teacher's Edition | 978-0-13-904129-7 | 1986 |