New Progress to Proficiency：Self-study Student's Book New Progress to Proficiency：Student's Book New Progress to Proficiency：Teacher's Book Progress to Proficiency：Student's Book Progress to First Certificate：Self-study Student's Book Progress to Proficiency．Student's book Progress to Proficiency：Teacher's Book Progress to Proficiency．Teacher's book Towards Proficiency：Student's Book Objective First Certificate：Self-Study Student's Book