Abstract: A displaying method for an electronic device is provided. The electronic device comprises a storage device storing at least a photo group and a sharpness look-up table. The photo group includes a plurality of photos of an object successively captured in different focuses and the sharpness look-up table records sharpness information of each of the photos. The displaying method comprises displaying a cover photo of the photo group and receiving a selecting signal indicating a position on the cover photo. According to the position, the sharpness information of each photo in the sharpness look-up table is checked to determine a photo to be displayed, wherein the sharpness information of the determined photo shows a sharpness score at the position of the determined photo is the maximum among the sharpness scores at the positions of the photos in the photo group. The determined photo of the object is displayed.