Language in Use is now available in four levels. The approach of "Language in Use Pre-intermediate, Intermediate and Upper-intermediate" is now extended downward in "Language in Use Beginner". It is for adult and young adult learners. The components of Language in Use Intermediate are Classroom Book, Teacher`s Book, Class Cassette Set, Self-study Workbook with Answer Key, Self-study Workbook, Self-study Cassette Set, Tests, Tests Cassette.