The library is open to the public and is mainly frequented by scientists and students from the NTNU and local historians.
It is based in the building of the DKNVS' library which dates back to 1866, and the new adjacent annexes which were later added in the years 1939 and 1975.
The library boasts a collection of photographs, maps, manuscripts and a huge holding of books dating back from the 15th century.
The library also holds an extensive book collection which came from the Norwegian legal deposit and revised materials from the last one hundred years.
That is the reason why Johan Ernst Gunnerus, the co-founder of the Society, became librarian, a position which he held until he died in 1773.
With this right the library of DKNVS in Trondheim and the Bergen Museum were able to claim in each case one copy of books from Norwegian publishers.