Per Wahlöö was a Swedish author born on November 5, 1926, in Gothenburg, Sweden. He is best known for his contributions to the crime fiction genre, particularly through his collaboration with his partner, Maj Sjöwall. Together, they created the acclaimed Martin Beck series, which revolutionized detective fiction by incorporating social commentary and realism. Wahlöö's writing often explored themes of justice and societal issues, reflecting his interest in politics and human behavior. He published several novels and short stories, earning recognition for his innovative narrative style. Per Wahlöö passed away on August 22, 1976, leaving a lasting impact on the literary world.