Features: - 130 units divided into CEFR levels A1, A2, B1 and B2 - clear structure, set out in double pages: grammar theory on the left, activities on the right - careful progression in the use of the language and the theory - use of high-frequency vocabulary so as not to make the exercises unnecessarily difficult - summary tests with activities in the style of the Goethe Institut exams - summary sections with diagrams, lists and further information in the appendix - for self-study: solutions for the activities and glossary of grammatical terminology in a separate booklet. CD-ROM for the student containing interactive exercises for each level