The workbook for Network B1 (chapters 1-12) specifically deepens what has been learned. There is an exercise in the workbook for each task in the course book. It prepares students in four training chapters for the examinations "Zertifikat B1," "Zertifikat Deutsch," and "DeutschTest für Zuwanderer." The workbook expands vocabulary paradigms through numerous exercises and overviews. It contains exercises for internal differentiation, promotes and trains word formation skills, and encourages independent control of learning success. Additionally, it includes two audio CDs with audio texts and pronunciation exercises.