In Level 4 - Blue books, children build on the letter-sound combinations learned in levels 1 and 2. They learn consonant digraphs (sounds made up of two letters together such as 'ch' or "ll") and long vowel sounds (such as 'igh' or 'ai').
Titles Include:
| The Lurking Turnips |
/ur/er/ |
| The Trolls in the Forest |
/ow/oi/ |
| Baboon on the Moon |
/oo/ |
| Lorna Starts Classes |
/ar/or/ |
| The Wait for the Monster |
/ai/ee/igh/ |
| The Not-So-Fun Fair |
/air/ure/ |
| The Land in the Jar |
/igh/ar/ |
| Orla and Midnight Wing |
/or/ur/ow/ |
| Ow, Oi! |
/ow/oi/ |
| The Zorbs' Ears |
/ear/air/ure/ |