An apparatus may take a panoramic photograph without the need to set the order in which panoramic images. The method includes taking a reference image that is a portion of the panoramic photograph, generating a plurality of guide images using portions of the reference image, detecting movement of an image-taking device and displaying a guide image selected according to the detected movement of the image-taking device, and taking a connected image to be stitched to the most recently taken reference image using the guide image.