To provide a decorating body or a decorating device having a highly decorative effect under the condition that the natural wood grain of a veneer can be fully utilized even during the night and under the state having no exterior illumination and having a more highly improved decorative effect under the condition that the natural wood grain of the veneer is utilized.

A light guiding body is arranged at the rear surface of the veneer. In addition, LED light sources are arranged opposite to the rear surface or the side of the light guiding body.