He is the author of several books on subjects such as folk poetry, history and religion.

The most famous collection of folk poetry is by far the Kalevala.

He was one of the most notable researchers into Finnish folk poetry in the 19th century.

After 1940, he dedicated himself almost exclusively to the research of Slovene folk poetry.

The people have a great passion for folk music and folk poetry.

He was a pictorial writer, with a love to nature, while most of his work was based on traditional folk poetry.

The book features a number of folk poetry and stories regarding Finnish folklore.

This includes teasing of other people in their Boliaan (folk poetry).

The young poet began to study folk poetry and narrative classical masterpieces of the East.

The book received a rather positive reception because it had not been seen that proverbs are pagan in the same was as folk poetry.