Interview marks a content type that documents a conversation with a person. The form stays close to the actual exchange, usually as a sequence of question and answer, without editorial summary in between.
Whose voice carries the piece
Unlike a guide or an opinion piece, most of an interview's content comes from the person being interviewed. The editorial side asks questions and provides framing, but the answers and the viewpoint stay attributed to the interviewee.
The type fits topics where one person's experience or expertise takes center stage, such as practitioners, experts, or people directly involved in a specific event. The wording stays closer to the original exchange than in a summarizing article, including small detours or contradictions along the way.