After examen artium in 1947 she worked five years as a secretary in Oslo, while she wrote her first books.
Her trilogy Bedremannsbarn (1973), Borgersinn (1974) and Nye veier (1979) is a family chronicle from the early 1900s.
The story takes place on the fictitious island Jutøy and among whalers at the polar sea, and also depicts whaling pioneer Svend Foyn.
[2] Bang is a passionate collector of ancient dolls, and she edited the anthology Har dukkene sjel?
She has also written two crime novels, Mord i måneskinn (1956) and Seilas med døden (1960).