Edgar Allan Poe is known for his notable works that delve into themes of death, madness, and the supernatural. His famous poems, such as The Raven and short stories like The Tell-Tale Heart, explore the darker aspects of the human psyche. Poe's unique style blends gothic elements with meticulous craftsmanship, creating an atmosphere of suspense and intrigue. He significantly contributed to the genres of horror and detective fiction, influencing countless writers and solidifying his legacy in American literature.