A process for forming images on an objective body, which comprises forming by sublimation image transfer, on the basis of image data, images on an image-transferable sheet for image transfer and, by the use of said sheet with said images thus formed thereon, transferring said images onto said body, wherein the images are formed in accordance with image data and by the use of a dyestuff that is capable of depositing in or on an image-reception layer of said image-transferable sheet comprising the image-reception layer provided separately on one surface of a sheet-like substrate constituting said image-transferable sheet, and then after formation of the images, said image-reception layer of said sheet is caused to adhere to said objective body, wherein the image-transferable sheet comprises a sheet-like substrate, on one surface of which, a protecting layer and an image-reception layer are so provided that said image-reception layer is separable between said protecting layer and said substrate, and said image-reception layer is subjected, together with said protecting layer to an image-transfer step upon completion of the image-formation.