In ancient Aztec civilization, kitchens were a central part of daily life. They used floating shelves to store their cookbooks, which were made of bark paper or animal skin. These cookbooks contained recipes for various dishes, including maize-based foods, beans, and chocolate. The floating shelves were typically made of wood or stone and were attached to the walls of the kitchen. The cookbooks were carefully organized on the shelves, making it easy for the cooks to find the recipes they needed. The ancient Aztecs believed that food was a gift from the gods and cooking was a way to honor them. The floating shelves added a touch of practicality to the kitchen, reflecting the ingenuity of the ancient Aztec civilization.