Oxford Reading Tree Read With Biff, Chip, and Kipper: Phonics: Quick! Quick!
Read With Biff, Chip and Kipper Phonics have been specially written to enable children to practise their letters and sounds as they do at school. Level 4 stories practice long vowel sounds such as 'ee' as in 'feet' and letter pairs such as 'ck'. Each book includes tips for reading together and talking about the story, puzzles and fun activities.