The "Hello! Grammar Training for German as a Second Language" by PONS is aimed at advanced German learners aged 16 and older who already have a good command of the language. This textbook is ideal for self-study and offers a comprehensive collection of over 500 exercises, ranging from basic to B1 level. The innovative double-page principle allows learners to explore a new grammar topic on the left side and immediately apply what they've learned on the right side. Additionally, the book includes detailed explanations of irregular verbs, verbs and their objects, as well as prepositions. It is suitable for both self-learners and use in German courses, making it a valuable tool for anyone looking to deepen their grammar knowledge.