I plan to start studying a business degree in Berlin in the summer of 2020. Right now I don’t know a single word in the German language, though I intend to take a course or two in German before those studies start.
I understand that public tuition-free courses are basically all taught in German. So given the said circumstances, would it be practical for me to study a free public course? Are the study books all in German as well, or can you buy books in English? Do you have to write tests, essays and homework in German?