Set of 12 Decodable Beginner Reader Books Twelve fully decodable books covering vowel digraphs. Introduces one spelling for each of the vowel sounds. Book 1: spelling ‘ai’ for the sound /ae/ Book 2: spelling ‘ee’ for the sound /ee/ Book 3: spelling ‘oa’ for the sound /oa/ Book 4: spelling ‘ur’ for the sound /er/ Book 5: spelling ‘ea’ for the sound /e/ (head) Book 6: spelling ‘ow’ for the sound /ow/ Book 7: spelling ‘oo’ for the sound /oo/ as in b’oo’t Book 8: spelling ‘igh’ for the sound /ie/ Book 9: spelling ‘oo’ for the sound /oo/ as in l’oo’k Book 10: spelling ‘aw’ for the sound /aw/ Book 11: spelling ‘oi’ for the sound /oi/ Book 12: spelling ‘ar’ for the sound /ar/.