Cornices and coving are architectural mouldings designed to transition smoothly between walls and ceilings. Cornices typically project outward and add a decorative finish to the junction between walls and ceilings, while coving is a concave-shaped moulding that creates a seamless transition. Both serve practical purposes by concealing joints and imperfections, but they are also crucial for adding a touch of sophistication to a room. Cornices and coving are available in various styles, allowing homeowners to choose options that complement their overall design theme.