Dracula is an 1897 novel by Irish author Bram Stoker. Famous for introducing the character of the vampire Count Dracula, the novel tells the story of Dracula's attempt to move from Transylvania to England, and the battle between Dracula and a small group of men and women led by Professor Abraham van Helsing. Narrated through a collection of diary entries and letters, Dracula tells the story of a young lawyer sent to manage the affairs of a mysterious Romanian count, only to unleash an evil which preys on those he holds dearest, until the forces of good rally to vanquish it once more. Dracula has been assigned to many literary genres including vampire literature, horror fiction, the gothic novel and invasion literature. The novel touches on themes such as the role of women in Victorian culture, sexual conventions, immigration, colonialism, and postcolonialism. Although Stoker did not invent the vampire, he defined its modern form, and the novel has spawned numerous theatrical, film and television interpretations.