She began studying psychology and English literature at University of Oslo and got her B.A.

[2] Dahle made her literary début in 1987 with Audiens (Audience), a collection of poetry.

[3] Since then Dahle has written over 50 books in different genres, poetry collections, three novels, three novellas, short stories, children' s theatre pieces, radio plays, essays and children's books.

[4] Several picture books for children arose from collaboration with her husband, Norwegian illustrator and author Svein Nyhus.

[1] Dahle is a stylistically naïve, imaginative and burlesque writer[1] often focusing on psychological problems and relations.