Among its revelations is the idea that Thompson never set out to be a writer of crime fiction. In 1931, he majored in Agricultural Journalism at the University of Nebraska. While there he wrote and published nonfiction except for one detective story in Nebraska Farmer.
During the 1940s, he published Now and on Earth and Heed the Thunder, novels based on his years working on the farms of Nebraska and Oklahoma and in the oil fields of West Texas. He seemed on the way to a career comparable to that of his contemporary, John Steinbeck.
Thompson turned to crime---crime-writing that is---out of necessity. His mainstream novels would not pay the bills. In 1949, at the age of 42, he published his first crime novel, Nothing More than Murder.
Thanks to the introduction of paperback originals in the 1950s, a lucrative market for genre fiction opened up, and publishers called out for writers to supply it. Thompson went on to produce what some call the greatest American crime novels.