A biography tells the story of a real person's life from birth to death or present day. It includes key life events and seeks to create a well-rounded description of the subject by exploring their childhood, relationships, successes and failures. Biographies can be about contemporary or historical figures, famous people or unsung heroes, as well as groups of people. The type of biography depends on whether it is about a living or deceased person, a historical figure, group, autobiography or memoir. All biographies aim to present an accurate account of a subject's life in the context of their times.