You can ask the library staff even outside the actual library buildings.
iGS – information Gas Station
Ask anything you like about anything you may think of. Information Gas Station will answer. You can send in your question by e-mail, text message, fax, postcard or phone.
Ask A Librarian - The Online Reference Enquiry Service of Finnish Libraries
Ask anything about books, authors or web sites. You’ll have an answer in three working days. Check the Archive as well. Someone might have asked the same question earlier.