On Pohjoisesplanadi opposite Stockmann is a wonderful bookshop…Academic Bookshop.
I could spend hours there, in fact I have. There is an excellent range of Finnish language books, as you would expect, as well as lots of books in English and other languages.
It was designed by Alvar Aalto in 1962 and completed 1969.
While you are there take the time to have a coffee and snack at the delightful Alvar Alto cafe.
The Academic Bookshop is one of the largest in Europe, I’m sure you will find a suitable book or two there.