Fritz Leiber was an American author born on December 24, 1910, in Chicago, Illinois. He is best known for his contributions to the genres of fantasy and science fiction. Leiber's most famous works include the Fafhrd and the Gray Mouser series, which features two iconic characters in a richly imagined world. Throughout his career, Leiber received numerous awards, including the Hugo and Nebula Awards, recognizing his influence on the genre. He was also a prominent figure in the Lovecraft Circle, engaging with other writers like H.P. Lovecraft. Leiber passed away on September 5, 1992, leaving a lasting legacy in speculative fiction.