A feed tray can be switched between a first posture in which the feed tray is at a first tilt angle, and a second posture in which the feed tray is at a second tilt angle that is closer to a horizontal direction than the first tilt angle or the feed tray is horizontal. An image reading apparatus executes a first feed mode that starts feed of a medium based on a reading execution operation by a user in the first posture, and executes a second feed mode that starts feed of a medium when setting of the medium on the feed tray is detected in the second posture.