His speciality was Scandinavian art from the 20th century. He worked at the National Gallery of Norway from 1946 to 1973. He edited the journal Kunst og Kultur from 1962 to 1980.
He published several works on the history of art and on individual artists, including Harald Sohlberg, Hjalmar Haalke, Johan Christian Dahl, Theodor Kittelsen and Erik Werenskiold.