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.These photographic nonfiction readers 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, including the introduction of was , to , do and of .