EDIT: OH! There was a description of kalevala already!
But here is the post anyway
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Im from Finland
Propably the the only and one talebook of finland is "Kalevala" where even J.R.R. Tolkien took some elements like singing spells.
Kalevala is a mythos or talebook of a person called "Vainamoinen" (a's are with dots and o's are with dots). The tale begings from creation of world where bird called "Sotka" lays eggs to the island which was actually a leg of mother sea (or something). Sotka incubated the eggs and the eggs become so hot that the leg had to withdraw to sea and therefore the eggs broke and formed lands.
Vainamoinen was a bloke aight. He possessed a skill of singing people to swamp and stuff. I haven't completed the book singe it's very heavy to read and it's written in form of poetry.
Kalevala is perhaps the only thing remained in finnish "culture". Some say that finland is the most american country in europe (but still small and pathetic piece of shit).