First Person was an American TV series produced and directed by Errol Morris. The show engaged a varied group of individuals from civil advocates to criminals. Interviews were conducted with "The Interrotron", a device similar to a teleprompter: Errol and his subject each sit facing a camera. The image of each person's face is then projected onto a two-way mirror positioned in front of the lens of the other's camera. Instead of looking at a blank lens, then, both Morris and his subject are looking directly at a human face. Morris believes that the machine encourages monologue in the interview process, while also encouraging the interviewees to "express themselves to camera".