Dracula is an epistolary novel, told through letters, diaries, and other documents.
Rather than using one continuous narrator, Bram Stoker assembles the story from Jonathan Harker's journal, Mina Murray's diary, letters, telegrams, newspaper reports, memoranda, and a ship's log. The shifting documents make the supernatural events feel like assembled evidence, encouraging readers to investigate the mystery alongside the characters.
The form also suits the novel's plot. Mina collects and organizes the group's records, turning separate experiences into a coordinated account of Dracula's movements. That collaborative structure reflects the hunters' need to combine their knowledge to defeat him. A common mix-up is calling the book a frame narrative: it contains framed or embedded records, but its recognized overall form is epistolary. It is also a Gothic horror novel, but genre and narrative form are different classifications.