Description Jolly Phonics covers 42 letter sounds by sound groups: Group 1:s a t i p n Group 2: c k e h r m d Group 3: g o u l f b Group 4: ai j oa ie ee or Group 5: z w ng v oo oo Group 6: y x ch sh th th Group 7: qu ou oi ue er ar. With a mixture of Inky Mouse and Friends, General Fiction and Nonfiction readers, these books feature words that are spelled regularly and can be sounded out with the 42 letter sounds first taught in Jolly Phonics. There are also 11 Tricky Words included in each book.