Pretty nice library. Nice selection of books AND services. They have a language cafe on Thursdays at 1300. You can learn Norwegian by talking to the locals. Really nice.
Very good
Alright public library
Ok
Much noise in the study area in the 3rd floor. People don't respect the silence. Come up talking loud. And more on the weekends with the children running around. One can hear the "gruppe møtterom" next to it if the people is talking. The chairs make a lot of noise. Though is the only option in Trondheim if you need to study on the weekends in a library, what a poor option.