Kunsthochschulbibliothek: bespoke classification system

The Kunsthochschulbibliothek uses its own specialised classification system. No LC or Dewey here.
In fact, each of the 10 branch libraries of the University of Kassel have their own unique system.
There are no plans to unify the classification- with over one million titles university wide, Ute physically shuddered at the mere suggestion of the project.
It must be working just fine. In place for over fifty years, the art school collection of 55,000 monographs, 2500 DVDs and 95 hardcopy periodical subscriptions is in perfect working order.