Kiln work, also known as kiln-formed glass or warm glass, is a process of shaping, fusing, or manipulating glass using a kiln. A kiln is a high-temperature furnace used for various heat treatments, such as annealing, drying, or hardening. In the context of glass art, a kiln is used to heat glass to a temperature that allows it to become soft and malleable. Artists can then manipulate the glass to create different shapes, textures, and patterns. Slumping involves heating glass until it softens and then allowing it to ‘slump’ or sag into a mold, taking on its shape. This technique can be used to create items such as plates, bowls, and other glassware. Kiln carving involves placing a pattern or design made from a heat-resistant material on a glass sheet. The glass is then heated in a kiln, causing it to soften and slump over the pattern, creating a raised or textured design.