Norwegian cartoonist known for his subculture-themed comic book art. To Trøtte Typer, his most famous comic book, focuses on characters who are criminals and drug addicts.
He first printed his comics in an anarchist publication called Gateavisa.
He became famous for creating a character called "Hold Brillan" (English translation: "Hold My Glasses").
His father, John David Nielsen, was also an artist, and his brother, Joachim Nielsen, had a career as a rock musician.
His American contemporary, Lincoln Pierce, created the popular Big Nate comic strip.