In ancient Japan, kitchens were an essential part of daily life. They used floating shelves to store their cookbooks, which were made of bamboo or silk scrolls. These cookbooks contained recipes for various dishes, including sushi, noodles, and soups. The floating shelves were typically made of wood or stone and were attached to the walls of the kitchen. The cookbooks were carefully placed on the shelves, ensuring easy access for the cooks. The ancient Japanese believed that food was not only a source of nourishment but also a way to connect with nature. The floating shelves added a touch of simplicity and elegance to the kitchen, reflecting the minimalist aesthetic of ancient Japanese culture.