Lighting is a key element of design and it affects the look, feel, and function of a space. Good lighting can really make a space come alive, adding energy, interest, and style. It should complement both the architecture and décor, and allow people to see and feel comfortable in a room. To achieve this, its important to keep in mind where the light is coming from and how it interacts with the objects its illuminating. Natural light is by far the most beautiful type, so if possible allow as much natural light into the space as possible. However, in many cases artificial lighting must be used. In this case, layer in lighting with a mix of different sources, including overhead lights, table lamps, wall sconces, and strategically placed accent and task lighting. This way, you can easily adjust the lighting to suit different needs and activities. On a practical level, lighting should also be functional and energy efficient. Consider using LED or CFL bulbs, which are bright and energy-saving and come in a variety of colours and temperatures. You can also choose to dim the lights to save energy, and switch them off at night. In short, by understanding how lighting affects the look, feel, and function of a room, and using a combination of natural and artificially lit sources, you can create a space that looks beautiful and works well.