For citizens from outside the EU/EEA, the residence permit/ visa process is your gateway to Germany. For those with an acceptance letter from a German University or a job offer for a German company already, simply make your appointment in advance at the Auslanderbehörder (Immigration Office) in Aachen for after you have arrived and registered your place of residence (Anmeldung). There they will issue you your residence permit/ visa and you’ll be good to go. If you are planning to move to Germany under other circumstances, start by visiting a German embassy or consulate to begin your application. Once granted, you’ll have the permit you need to make your move.