Jack Finney, born Walter Braden "Jack" Finney, was an American author known for his significant contributions to the genres of science fiction and thriller. His most notable works include The Body Snatchers and Time and Again. The former became widely known as it served as the inspiration for the 1956 film Invasion of the Body Snatchers and its subsequent remakes.

Finney was born on October 2, 1911, in Milwaukee, Wisconsin, and later pursued education at Knox College in Galesburg, Illinois. His career took a pivotal turn when he moved to New York and began working in the advertising industry. This experience likely influenced his writing, as seen in Time and Again, a novel that not only showcases his love for New York but also his meticulous research into its history, making it a cult favorite, especially among New Yorkers.

Throughout his career, Finney's works were characterized by their ability to blend thrilling narratives with scientific curiosity, making him a beloved figure in the literary world. He passed away on November 14, 1995, leaving behind a legacy that continues to inspire readers and filmmakers alike.