Thriller novels are a genre of literature which revolves around suspense, mystery, and excitement. They are characterized by fast pacing, frequent action, and resourceful heroes who must thwart the plans of more-powerful and better-equipped villains. This genre often overlaps with mystery, creating a hybrid category known as mystery-thriller, adding elements of puzzle-solving and investigation. The category also relates to books in general, as it represents a specific type of book. Book reviews are also associated with this category, as they provide critical analysis and evaluations of these novels. Additionally, the category is linked to arts, as literature is considered a form of artistic expression.