Robert Traver was the pen name of John D. Voelker, an American author, attorney, and fly fisherman. He is best known for his novel Anatomy of a Murder, published in 1958, which is a courtroom drama inspired by a real-life murder case in Michigan. The book gained significant acclaim and was later adapted into a successful film directed by Otto Preminger. In addition to his writing, Traver was an avid fisherman and conservationist, deeply connected to the natural beauty of Michigan's Upper Peninsula. His passion for the outdoors often influenced his literary work, reflecting his love for nature and the sport of fly fishing.