"Help children to understand vowel digraphs with this pack of 14 decodable reading books from the Dandelion Readers series. Each book looks at 4 or 5 different vowel sounds with a fun and simple story. Book 1 ai, ay, a, a-e, ea;
Book 2 ee, e, ea, y; Book 3 oa, o, ow, oe, o-e; Bo...