Each parallel set of books feature fun stories introducing children to sounds of the alphabet adjacent consonants consonant digraphs and vowel digraphs.Includes 10 books 1 per unit covering: Unit 1: s a t i m; Unit 2: n o p; Unit 3: b c g h; Unit 4: b c g h; Unit 5: k l r u; Unit 6: j w z; Unit 7: x y ff ll ss zz; Unit 8: VCC CVCC; Unit 9: CCVC; and Unit 10: CCVCC. This set covers Book Band Yellow and meets Phases 2 & 3 of Letters and Sounds.