An image display device, comprising: placing means for placing a plurality of photographic images on a virtual plane; instructing means for instructing a size of a display area defined on a part of the virtual plane; image display means for displaying an image showing a picture inside the display area, said image including at least one of the plurality of photographic images; and moving means for moving at least either one of the respective photographic images and display area along a predetermined direction defined on the virtual plane, relative to the virtual plane, wherein the placing means is configured and adapted to place the respective photographic images so as to be included in an area which is a band area extending in the predetermined direction on the virtual plane, having a width corresponding to the size instructed by the instructing means, of the display area, and at least partially overlapping the display area, and the photographic images are arranged according to a placing order, said placing order being an image capture date order or an order of the file names given to data of the respective photographic images, characterized in that the placing means is configured and adapted such that, when one placement pattern is changed to another placement pattern among the plurality of placement patterns according to an instruction to change the size of the display area, the placing means moves another photographic image with respect to a reference according to the other placement pattern, wherein the photographic image which overlaps the center of the display area at the time of receiving the instruction is used as the reference. placing means for placing a plurality of photographic images on a virtual plane; instructing means for instructing a size of a display area defined on a part of the virtual plane; image display means for displaying an image showing a picture inside the display area, said image including at least one of the plurality of photographic images; and moving means for moving at least either one of the respective photographic images and display area along a predetermined direction defined on the virtual plane, relative to the virtual plane, wherein the placing means is configured and adapted to place the respective photographic images so as to be included in an area which is a band area extending in the predetermined direction on the virtual plane, having a width corresponding to the size instructed by the instructing means, of the display area, and at least partially overlapping the display area, and the photographic images are arranged according to a placing order, said placing order being an image capture date order or an order of the file names given to data of the respective photographic images, characterized in that the placing means is configured and adapted such that, when one placement pattern is changed to another placement pattern among the plurality of placement patterns according to an instruction to change the size of the display area, the placing means moves another photographic image with respect to a reference according to the other placement pattern, wherein the photographic image which overlaps the center of the display area at the time of receiving the instruction is used as the reference.