There have been some complaints about the building, because there’s not that many books.
But the law that governs public libraries actually gives libraries quite wide mission.
Quick automatic translation from the finnish version. Not perfect, but you get the point.
”The purpose of this Act is to promote:
1) equal opportunities for education and culture for the population;
2) access to and use of information;
3) reading culture and diverse literacy;
4) opportunities for lifelong learning and skills development;
5) active citizenship, democracy and freedom of expression.”