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 general fiction readers cover the 42 letter sounds across 7 sets, with each set covering one particular group of sounds. The last set of readers also features a small number of tricky words. Children can be introduced to these books as each group of sounds is taught.