The practical grammar of the Japanese language is a learning and reference grammar for German-speaking learners of Japanese. It is particularly suitable for beginners and intermediate learners, as it covers all grammatical areas tested in levels 5, 4, and 3 of the globally administered Japanese Language Proficiency Tests (JLPT). The focus of the grammar is on language usage, illustrated by a large number of example sentences. The provided example sentences, presented in both Japanese script and romanization, have been selected to be directly applicable in everyday communication for Japanese learners and can be easily modified. All example sentences are fully translated into German to help learners become aware of the different language structures.