James Caine is a notable figure in the world of literature, primarily recognized for his contributions to the genre of crime fiction. He is best known for his hard-boiled detective novels, which often feature complex characters and intricate plots. His writing style is characterized by sharp dialogue and a gritty realism that captures the darker aspects of human nature. Caine's most famous works include The Postman Always Rings Twice and Double Indemnity, both of which have been adapted into successful films. His influence on the genre has been significant, inspiring many writers and filmmakers in the realm of noir fiction.