A mobile terminal comprising: a display configured to display information; and a controller configured to: cause the display to display a specific image in an image view mode; group one or more related images with the specific image in a group of images based on a predetermined grouping criterion; create a group thumbnail image for the group of images in response to a touch input to the specific image, the created group thumbnail image comprising an extracted area of the specific image; and cause the display to display a plurality of thumbnail images including the created group thumbnail image in an image gallery mode, wherein group thumbnail images including the created group thumbnail image are displayed visually distinctly from the remaining thumbnail images of the plurality of thumbnail images, wherein the controller is further configured to: cause the display to spread out a plurality of thumbnails (911, 912, 913, 914) included in a group of images corresponding to a specific group thumbnail image in response to a first touch on the specific group thumbnail image comprised in the displayed plurality of thumbnail images, and cause the display to gather the spread-out thumbnails (911, 912, 913, 914) in response to a second touch on one of the spread-out thumbnails (911, 912, 913, 914), wherein display of the group thumbnail image (910") is changed based on the second touch. a display configured to display information; and a controller configured to: cause the display to display a specific image in an image view mode; group one or more related images with the specific image in a group of images based on a predetermined grouping criterion; create a group thumbnail image for the group of images in response to a touch input to the specific image, the created group thumbnail image comprising an extracted area of the specific image; and cause the display to display a plurality of thumbnail images including the created group thumbnail image in an image gallery mode, wherein group thumbnail images including the created group thumbnail image are displayed visually distinctly from the remaining thumbnail images of the plurality of thumbnail images, cause the display to display a specific image in an image view mode; group one or more related images with the specific image in a group of images based on a predetermined grouping criterion; create a group thumbnail image for the group of images in response to a touch input to the specific image, the created group thumbnail image comprising an extracted area of the specific image; and cause the display to display a plurality of thumbnail images including the created group thumbnail image in an image gallery mode, wherein group thumbnail images including the created group thumbnail image are displayed visually distinctly from the remaining thumbnail images of the plurality of thumbnail images, wherein the controller is further configured to: cause the display to spread out a plurality of thumbnails (911, 912, 913, 914) included in a group of images corresponding to a specific group thumbnail image in response to a first touch on the specific group thumbnail image comprised in the displayed plurality of thumbnail images, and cause the display to gather the spread-out thumbnails (911, 912, 913, 914) in response to a second touch on one of the spread-out thumbnails (911, 912, 913, 914), wherein display of the group thumbnail image (910") is changed based on the second touch. cause the display to spread out a plurality of thumbnails (911, 912, 913, 914) included in a group of images corresponding to a specific group thumbnail image in response to a first touch on the specific group thumbnail image comprised in the displayed plurality of thumbnail images, and cause the display to gather the spread-out thumbnails (911, 912, 913, 914) in response to a second touch on one of the spread-out thumbnails (911, 912, 913, 914), wherein display of the group thumbnail image (910") is changed based on the second touch.