A display control apparatus that makes it easy to recognize a target image when images are displayed in each of regions obtained by dividing a single screen, even when the method for dividing the screen has changed. For example, when the method for dividing the screen in an index view is switched, the post-switch location of a target thumbnail image is calculated based on the ratio between the pre- and post-switch division numbers and the pre-switch location of the target thumbnail image, in both the horizontal and vertical directions. Then, the overall arrangement of the thumbnail images in the index view after the division method switch is determined based on the calculated location of the target thumbnail image.