The fourth set of four levels of decodable books and ideal for the more confident reader. In Level 4 the stories are much longer, and introduce more tricky words. Covers all the Jolly Phonics alternative vowel spellings that are used to make words like "day", "seat", "night", "snow", "few", "girl", "straw", "boy", and "scowl". Tricky words are shown at the beginning of each book. Comprehension questions and discussion topics are provided at the end of each book, along with guidance for teachers and parents. Light type is used as a guide for those few letters that should not be sounded out. Pack of 18 books contains 3 lively series, Inky Mouse and Friends, General Fiction and Nonfiction, each with 6 different books per series. Each book contains 16 pages, with 4 sentences per page (approx), 61 tricky words and 18 alternative spellings per book.