A method and apparatus for displaying images is provided. In particular, provided are a method and apparatus for displaying images using a duplex thumbnail mode in which images larger than thumbnail images are created when photographing images to display a larger image together with a corresponding activated thumbnail image whenever the thumbnail image is activated. The apparatus includes a signal processing unit that displays a first thumbnail image that is of the same size or larger than a second thumbnail image together with the second thumbnail image whenever the second thumbnail image isactivated among displayed thumbnail images.