An image forming apparatus comprises: an operation part having a display area and operable to receive an input from a user; a first display part operable to display, in a part of the display area, (i) a first image to be visible only from a range of a first viewing angle and (ii) a second image to be visible only from a range of a second viewing angle that does not overlap with the range of the first viewing angle; an audio output part operable to output an audio explaining the first image; and a second display part operable, while the audio explaining the first image is being output, to display, in a remaining part of the display area, a notification indicating that the audio explaining the first image does not correspond to the second image, such that the notification is visible from the range of the second viewing angle.