| title | ISBN-13 | year of publication |
|---|---|---|
| Easy English for Busy People - Polish - Elementary: 1 | 978-0-230-71164-8 | 2008 |
| Easy English for Busy People - Polish - Pre-intermediate level: 2 | 978-0-230-71167-9 | 2008 |
| Easy English for Busy People - Russian - Elementary Level: 1 | 978-0-230-71170-9 | 2008 |
| Easy English for Busy People - Russian - Pre-intermediate level: 2 | 978-0-230-71173-0 | 2008 |