The Japanese design has evolved from a clean, tidy and simple lifestyle, and the persistence of balance, order, and traditional culture. Let's take a look at some Japanese Unique design elements. Tatami Speaking of Japanese style, the first thing that comes to mind is tatami. Traditional Japanese-style bedrooms are laid out with tatami mats, while Japanese-style houses are more likely to place a few tatami mats in the open space currently, which also fills the room with the s