Course Catalog
The course catalog (German: Vorlesungsverzeichnis, frequently used abbreviation: VV) is where all courses are being published. Sometimes it's a bit hard to find your way around there at the beginning, but after clicking around a few times it usually works out :-)
It is important that you check the course catalog to find out which courses take place where and when. You should know this before you enroll for your courses.
The course catalog is usually published two months in advance of the respective semester. That includes the dates for (written) exams.
On the following pages you will find some tips on how to orient in the course catalog.