In order to enable a natural and clear image to appear in both light reflection and light transmission usage modes of a light-reflection/light-transmission image sheet having front and back-side images (3, 4) overlying each other with a sheet-like base material (2) that is reflective and transmissive interposed therebetween, the density distribution of the back-side image (4) of the light-reflection/light-transmission image sheet is obtained by reducing a high-density portion (N1) that exceeds a set density ± in the density distribution of the front-side image (3), to the set density ± or a density close in value thereto.
