Are ISSN mandatory, and what do they cost?
ISSN are not mandatory in the Federal Republic of Germany, but they are in other countries.
In Germany, ISSN are issued free of charge.
Navigation and service
Leipzig: Thursday 15.05.2025
The German National Library in Leipzig will not open until 16:00 on Thursday 16.05.2025 due to maintenance work.
The Museum Reading Room and the exhibitions of the German Museum of Books and Writing will be open.
