Biographies include details of key events that shaped the subject’s life, and information about their birthplace, education, work, and relationships. Biographers use a number of research sources, including interviews, letters, diaries, photographs, essays, reference books, and newspapers. While a biography is usually in the written form, it can be produced in other formats such as music composition or film.
If the target person of the biography is not alive, then the storytelling requires an immense amount of research. Interviews might be required to collect information from historical experts, people who knew the person (e.g., friends and family), or reading other older accounts from other people who wrote about the person in previous years. In biographies where the person is still alive, the writer can conduct several interviews with the target person to gain insight on their life.