American Jetstream Upper-Intermediate Combo B Teacher’s Book A, e-zone & Class Audio CDs (2) is the teacher’s support package for the Upper-Intermediate level of the American Jetstream English course published by Helbling Languages. American Jetstream is a six-level digital-age English course designed for adult learners and fully adapted for the American English market. It provides a balanced and motivating learning experience that prepares students to use English effectively in professional and everyday contexts.