These Phonics Readers give children the satisfaction of reading whole books. The imaginative, decodable stories gradually introduce new phonic elements and build on the vocabulary from previous stories. The order of teaching letter sounds in this series is the popular s a t p i n order. The 8 books contain a total of 30 engaging stories that children can use to decode the 26 most regular alphabet sounds, as well as blended sounds, the digraph ng and some 'tricky' high-frequency words.