Academic Series

Double R Boosters Grammar Books

Double R Phonics-Novice (Textbooks)

Double R Phonics-Novice (Exercise Books)

Non-academic Series

Double R Kids-Eyes on the World with Little Penguins (CQ)

Double R Kids-Eyes on the World with Little Penguins(Giselle & Emilio)

Double R Kids-Professions (Alien Teachers)