The presentation aims to motivate staff at archives to embrace the use of authority files namely the GND (Integrated Authority File for German-speaking countries). It introduces the basic structure of norm data, how it can be used in research to achieve better precision and recall results, how you may enrich your proper data by using GND identifieres and what to do if the reference data file does not yet exist. Finally, the slides show whom to turn to to edit an additional data file.