It is a peace poster for the Peace Poster Exhibition to be held annually in Hiroshima.
This poster expresses various lights and shadows. There are many stars in the large universe spreading in the night sky. The source of energy that makes a star shine is a fusion reaction occurring in the center of the star. When the star runs out of this fuel, the star can no longer continue to shine and will “die”. In short, light means the birth and death of life. And where there is light there is a shadow. I expressed the light and shadow in black and white.
I think that this poster has conveyed a message of peace to many people.