A method of manufacturing an individual authentication medium with an image display that is to be transferred from a support onto a substrate and displays an image including personal information, comprising: providing a transfer material layer being releasably supported by a first support , transferring a part of a transfer material layer including a hologram and/or diffraction grating from the first support onto a base layer , the base layer being releasably supported by the support , by a thermal transfer method using a thermal head so as to form a first image display layer on the base layer , the first image display layer including a part of the hologram and/or diffraction grating, displaying an image including at least a piece of the personal information, and comprising a release layer , a diffraction structure formation layer interposed between the base layer and the release layer and having a surface provided with a relief structure, and an adhesive layer interposed between the base layer and the diffraction structure formation layer , the diffraction structure formation layer including at least the hologram and/or diffraction grating as the diffraction structure, wherein the first image display layer includes dot-shaped portions, and each center of the dot-shaped portions is located on a lattice point of a virtual planar lattice; forming a second image display layer facing the base layer , the second image display layer being formed on the same side of the base layer as the first image display layer , and displaying a second image by utilizing light absorption, wherein the second image includes another piece of the personal information; the image display comprising the base layer , the first image display layer and the second image display layer ; and transferring the image display from the support onto the substrate of the individual authentication medium . providing a transfer material layer being releasably supported by a first support , transferring a part of a transfer material layer including a hologram and/or diffraction grating from the first support onto a base layer , the base layer being releasably supported by the support , by a thermal transfer method using a thermal head so as to form a first image display layer on the base layer , the first image display layer including a part of the hologram and/or diffraction grating, displaying an image including at least a piece of the personal information, and comprising a release layer , a diffraction structure formation layer interposed between the base layer and the release layer and having a surface provided with a relief structure, and an adhesive layer interposed between the base layer and the diffraction structure formation layer , the diffraction structure formation layer including at least the hologram and/or diffraction grating as the diffraction structure, wherein the first image display layer includes dot-shaped portions, and each center of the dot-shaped portions is located on a lattice point of a virtual planar lattice; forming a second image display layer facing the base layer , the second image display layer being formed on the same side of the base layer as the first image display layer , and displaying a second image by utilizing light absorption, wherein the second image includes another piece of the personal information; the image display comprising the base layer , the first image display layer and the second image display layer ; and transferring the image display from the support onto the substrate of the individual authentication medium . <EOS>