From the project website (accessed 2020-10-06):
The Swedish Institute in Rome is a research institute, subordinate to the Swedish Ministry of Education (Utbildningsdepartementet). It is the base for excavations and other scientific research in Italy and pursues academic instruction in archaeology and art sciences as well as arranging conferences with themes of interest to the institute. The Institute has at its disposal a building in central Rome with a relatively well-supplied library, archaeological laboratory and c. twenty rooms and smaller apartments for the use of visiting researchers and holders of scholarships. The board of directors and the chancellery have their seat in Stockholm, the chancellery being also responsible for the Swedish Institute in Athens and the Swedish Research Institute in Istanbul. The latest statute was stipulated in 1993. The San Michele foundation on Capri is also subordinate to the institute’s board of directors. The daily activities of the institute are led by a director. The institute’s premises in Rome include a library, archaeological laboratory and rooms for researchers. There is a supportive society (Föreningen Rominstitutets Vänner) with five sections in Sweden.
See the page https://biblio.isvroma.it/ for the library catalogue