Jolly Phonics Readers Level 4 Our World Non Fiction (Pack of 6, Pre-cursive letters)Jolly Phonics Our World nonfiction readers are fully decodable books for new readers. They have a very carefully controlled vocabulary and are specifically designed for children who are learning to read and write with Jolly Phonics. The text in these Blue Level Books (fourth level) uses only decodable regular words that use the letter sound knowledge taught so far: the 42 main letter sounds and the main alternative letter sound spellings (y as in