1. A display control apparatus comprising: a read out unit configured to read out an image from a recording medium; a classification unit configured to classify a plurality of images into a plurality of groups in accordance with attribute information of each image; a display control unit configured to control to display a representative image which represents each of the plurality of groups; a comparison unit configured to compare an image included in one of the plurality of groups classified by the classification unit with an image included in another group; and a determination unit configured to determine one of images included in the one group as a representative image of the one group based on comparison by the comparison unit, the image not overlapping a representative image of the other group.