An apparatus includes a display unit, a classification unit configured to classify a plurality of images into a landscape-oriented image and a portrait-oriented image, a detection unit configured to detect whether the apparatus is in the landscape orientation or in the portrait orientation, and a control unit configured to display a plurality of images in one orientation of the landscape-oriented image and the portrait-oriented image on the display unit in response to an instruction, and thereafter display a plurality of images in the other orientation on the display unit. The control unit determines the orientation of the image to be displayed first based on a detection result upon receiving the instruction.