These posters were express a new style of Hieroglyph “Kanji”.
There are the sun and a parallel line, All art works the parallel line represents Chinese character“Ichi”
It expresses by Land and cloud.
For example, When it’s express Land “Clear”. but when it’s“Rain”work is cloud.
All works art in black and white.
So they look very obvious And, when Someone looks at these works, he or she remembers Chinese character “Kanji”.
One more, the sun is very bright. If you look at the sun for a while, your eyes remain an incidental image color “black”.