| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2003 | 978-1-57812-008-6 | Challenger Phonics Fun! Activity and Reading Book Volume 1 - Letters and Sounds | |
| '' | 978-1-57812-009-3 | Learning Crew | Challenger Phonics Fun - Activity and Reading Book - Vol 2 - Vowels and Reading |
| 1994 | 978-1-57812-033-8 | The Learning Crew Series I: Pre-Readers Set Bks. 1-5 | |