Passages is a two-level, multi-skills course that takes students of English from the high-intermediate to the advanced level. The Class Audio Cassettes contain the listening sections for the Student's Book, recorded in natural, conversational English. The class audio is also available on Audio CDs.

New Interchange is a multi-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. The Lab Guide can be purchased for use with the Lab Audio Cassettes. The guide provides varying levels of support for the learner: Part A contains only the directions to each exercise, Part B contains the script for each exercise without the responses, and Part C contains the complete script for each exercise with the responses.

True to Life is a five level course designed specifically for adult learners.