An electronic picture frame comprising: a display; and a processor configured to: process a plurality of thumbnail images so that the plurality of thumbnail images are scrolled through and displayed on a scrollable area of the display, and control the display to automatically display an image corresponding one of the plurality of thumbnail images, which are scrolled through, on a main area, wherein, if the plurality of thumbnail images are scrolled in a first direction and a thumbnail image, among the plurality of thumbnail images, reaches a first preset location on the scrollable area, a larger image corresponding to the thumbnail image at the first preset location appears in the main area, wherein, if the plurality of thumbnail images are scrolled in a second direction and a thumbnail image, among the plurality of thumbnail images, reaches a second preset location on the scrollable area, a larger image corresponding to the thumbnail image at the second preset location appears in the main area, wherein the first preset location is at a first end of the scrollable area and the second preset location is at a second end of the scrollable area. a display; and a processor configured to: process a plurality of thumbnail images so that the plurality of thumbnail images are scrolled through and displayed on a scrollable area of the display, and control the display to automatically display an image corresponding one of the plurality of thumbnail images, which are scrolled through, on a main area, wherein, if the plurality of thumbnail images are scrolled in a first direction and a thumbnail image, among the plurality of thumbnail images, reaches a first preset location on the scrollable area, a larger image corresponding to the thumbnail image at the first preset location appears in the main area, wherein, if the plurality of thumbnail images are scrolled in a second direction and a thumbnail image, among the plurality of thumbnail images, reaches a second preset location on the scrollable area, a larger image corresponding to the thumbnail image at the second preset location appears in the main area, wherein the first preset location is at a first end of the scrollable area and the second preset location is at a second end of the scrollable area. process a plurality of thumbnail images so that the plurality of thumbnail images are scrolled through and displayed on a scrollable area of the display, and control the display to automatically display an image corresponding one of the plurality of thumbnail images, which are scrolled through, on a main area, wherein, if the plurality of thumbnail images are scrolled in a first direction and a thumbnail image, among the plurality of thumbnail images, reaches a first preset location on the scrollable area, a larger image corresponding to the thumbnail image at the first preset location appears in the main area, wherein, if the plurality of thumbnail images are scrolled in a second direction and a thumbnail image, among the plurality of thumbnail images, reaches a second preset location on the scrollable area, a larger image corresponding to the thumbnail image at the second preset location appears in the main area, wherein the first preset location is at a first end of the scrollable area and the second preset location is at a second end of the scrollable area.