Stufen International is a complete German as a Foreign Language (DaF) course designed for teenagers and adults. Volume 3 (Lehr- und Arbeitsbuch) combines the student coursebook and the workbook in one volume. It provides activities in listening, reading, speaking, and writing, as well as vocabulary, grammar practice, and cultural information to develop practical communication skills in German. The course progressively prepares learners for the Zertifikat Deutsch examination.