Oxford Reading Tree Read with Biff, Chip, and Kipper: Phonics: Level 3: The Sing Song 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 3 stories practice two consonant letters that make one sound such as "ck". Each book includes tips for reading together and talking about the story, puzzles and fun activities.