Oxford Reading Tree: Level 1 - Up You Go

The Level 1 Biff, Chip and Kipper Stories, written by Roderick Hunt and illustrated by Alex Brychta, provide both wordless stories and a rich story context to help develop language comprehension and decoding skills with simple first words and sentences.
Wordless Stories A and Wordless Stories B introduce the characters and children learn that the pictures tell a story, where a story begins and how to turn the pages. First Words and More First Words introduce children to simple words and the characters' names.