42 books • 12 series
Cambridge Checkpoint Lower Secondary World English for the Secondary 1 Test Revision Guide
Collins International English Foundation Plus Teacher's Guide (Collins International Foundation)
Collins International English Foundation Plus Activity Book A (Collins International Foundation)
Collins International Science Foundation Plus Activity Book B (Collins International Foundation)
Collins International Science Foundation Plus Activity Book C (Collins International Foundation)
Collins International Science Foundation Plus Activity Book A (Collins International Foundation)
Collins International English Foundation Plus Activity Book C (Collins International Foundation)
Collins International English Foundation Plus Activity Book B (Collins International Foundation)
Collins International English Foundation Teacher's Guide (Collins International Foundation)
Collins International Science Foundation Activity Book A (Collins International Foundation)
Collins International Science Foundation Activity Book C (Collins International Foundation)
Collins International Science Foundation Activity Book B (Collins International Foundation)
Collins International English Foundation Activity Book C (Collins International Foundation)
Collins International English Foundation Activity Book B (Collins International Foundation)
Collins International English Foundation Activity Book A (Collins International Foundation)
International Primary English Teacher's Book 5 (Collins Cambridge International Primary English)
International Primary English Student's Book 5 (Collins Cambridge International Primary English)