The book "German Grammar" offers a comprehensive introduction to the various approaches to German grammar. It covers traditional grammar, valency grammar, and generative grammar, enabling readers to systematically grasp grammatical issues. The author, Peter Ernst, structures the content in a way that starts from the object area and encompasses the linguistic levels from sounds to words, sentences, and texts. Particularly at the sentence level, which is considered a central component of grammar, important concepts such as sentence element, actant, and phrase are clearly differentiated. This textbook is aimed at students of German studies and is also suitable for both native and foreign language instruction of German in various educational contexts.