Maj Sjöwall was a Swedish author known as the co-author of the ten Martin Beck (1965-1975) novels.
She was with her partner Per Wahlöö (1926 – 1975) the spiritual co-parent of Nordic noir.
In my universe she is important for having been published in the Zwarte Beertjes collection of pocket books.
To an international audience she is all but forgotten.
I believe all of the duo’s books were made into films.
I give you the trailer of The Laughing Policeman (1973) featuring Walter Matthau and Bruce Dern.