Edgar Allan Poe brought about several changes in the literary style of his time period. Poe, as a writer, poet, editor and a critical writer influenced not only American literature, but he also had an impact on international literature. He was one of the first writers to develop the genre of both detective fiction and horror. Stories like “The Pit and the Pendulum,” “The Black Cat,” “The Tell-Tale Heart,” and “The Fall of the House of Usher,” as well as poems like the “Raven” set him apart from other writes of his time. “Many anthologies credit him as the "architect" of the modern short story. He was also one of the first critics to focus primarily on the effect of the style and of the structure in a literary work; as such, he has been seen as a forerunner to the "art for art's sake" movement.” Poe’s style still impacts writers today. "Nearly every important American writer after Poe shows signs of influence, especially when working in the gothic mode or with grotesque humor. The French, Italians, and writers in Spanish and Portuguese in the Americas acknowledge and demonstrate their debts to Poe in technique and vision." Steven King, Clive Barker and others have followed in the footsteps of Poe. The genre of horror is bigger today than ever and Edgar Allan Poe was at the forefront of this style of writing.