Metal leaf is a thin sheet of metal, often made from gold, silver, or copper, used in decorative arts and crafts. It is typically less than 1/1000th of an inch thick and can be applied to various surfaces, including wood, glass, and ceramics, to create a shiny, metallic finish. The process of applying metal leaf is called gilding. Artisans use special adhesives to attach the leaf to surfaces, allowing for intricate designs and patterns. This technique has been used for centuries in architecture, furniture, and fine art, adding elegance and richness to objects.