Thriller novels are a genre of fiction that focuses on suspense, excitement, and tension. They often involve a protagonist facing dangerous situations, such as crime, espionage, or psychological challenges. The narrative typically includes unexpected twists and turns that keep readers on the edge of their seats. Common elements in thriller novels include a fast-paced plot, complex characters, and high stakes. Popular subgenres include psychological thrillers, crime thrillers, and legal thrillers. Notable authors in this genre include Gillian Flynn and John Grisham, who have captivated audiences with their gripping storytelling and intricate plots.