Scholastic Decodable Readers systematically develop phonics skills in the context of enjoyable stories. The benefits of this set includes: 100% controlled text. Increase gradually in difficulty, reviewing elements as they incorporate new skills. Feature critical review words at the back of every book. Scope and Sequence Books 1-10 Intitial Consonents & Phonograms Books 11-28 Short Vowels and CVC Books 29-40 Short Vowels, CVC, and Digraphs, Blends Books 41-52 Digraphs, Blends, Final e, Inflectional Endings, and Long Vowels Books 53-64 Final e, Inflectional Endings, Long Vowels, and Variant Vowels, Diphthongs Books 65-76 Long Vowels (multiple spellings), Variant Vowels, Diphthongs, and r-Controlled Vowels Books 77-78 Variant Vowels, Diphthongs, r- Controlled Vowels, and 2-Syllable Words, Irregular Spellings