Metal leaf is a thin sheet of metal, often made from materials like gold, silver, or copper, used for decorative purposes. It is created by hammering or rolling the metal into extremely thin layers, which can be applied to surfaces to create a shiny, reflective finish. This technique, known as gilding, has been used for centuries in art and architecture to enhance the beauty of objects, furniture, and buildings. Metal leaf can be applied to various surfaces, including wood, glass, and ceramics, and is often used in fine art and restoration projects to achieve a luxurious appearance.