Kotus has a broad range of services, mostly available in Finnish and Swedish. Most of the services are free of charge.

Archives and library resources

The Institute maintains a library and several archives.


The Institute has comprehensive collections compiled over more than 100 years. In addition to printed matter, the collections contain audio material and an increasing amount of electronic corpora. Kotus has extensive collections of:

  •     names (Names Archive)
  •     dialects (Word Archive of Finnish Dialects)
  •     spoken language (Tape Archive of the Finnish Language)
  •     written language (e.g. the Corpus of Old Literary Finnish).

Nimiarkisto. Kuva: Kotus.


Kotus’s library also includes the library collections of the Finnish National Board of Education and the Academy of Finland. The library’s main function is to provide services for the Institute’s own projects and staff, and for the staff of the FNBE and AoF. Other customers can access the publications in the reading rooms during opening hours.

In 2015, Kotus’s collection comprised approximately 1,000 linear metres of publications (51,240 volumes). FNBE’s and AoF’s collections totalled approximately 148 linear metres.

kirjasto kotuksen kokoelmat