Textbooks teach you the rules. Apps help you memorize vocabulary. But what do you do when you need to drill the difference between "weil" and "denn"? Or when you want 30 quick exercises on the Dative case without the fluff?
The PDF format is ideal for the modern student who studies on a bus or during a lunch break. It strips away the heavy textbook and leaves pure grammar. Klipp Und Klar A1 B1 25.pdf
Klipp und Klar A1-B1 " is a standard German grammar exercise book (Übungsgrammatik) published by Klett designed for basic level learners. Textbooks teach you the rules