| title | ISBN-13 | year of publication |
|---|---|---|
| Step by Step, Chinese Readers Level A | 978-0-88727-851-8 | 2012 |
| Step by Step, Chinese Readers Level B | 978-0-88727-943-0 | 2013 |
| Step by Step, Chinese Readers Level B | 978-0-88727-995-9 | 2013 |
| Step by Step, Level A, Traditional: Early Chinese Readers | 978-0-88727-942-3 | 2011 |