The first (red) level of Jolly Readers uses words with the basic letter sounds in Jolly Phonics- and not t he alternative spelling of the digraphs (so ai in snail- but not ay as in day- or a-e as in gate). These alternative spellings will be introduced in a later level. Level 1 books have one sentence per page to allow children to focus on grasping reading basics. Each book has a list of tricky words on the back with silent letters in light coloured font. Set contains 6 non-fiction- 6 fiction and 6 Inky and friend books.