Lighting, or illumination, is the deliberate use of light to achieve a practical or aesthetic effect. The development of lighting as a technology has provided the world with proper illumination and access to electrical lighting for almost any space. Proper lighting can dramatically change the look and feel of a room. Lighting can be natural or artificial. Natural lighting is the use of daylight either directly through windows or by reflection from other surfaces like walls and ceilings. Artificial lighting includes electric lamps like halogen, fluorescent, LED and incandescent bulbs. Each type of lighting has its own set of advantages and disadvantages that you should consider when selecting lighting for a particular space. The quality of light is also important in achieving an ideal aesthetic. It is important to use light of an appropriate hue, brightness, and diffusion to create desired atmospheres and designs. Lighting design for any space must also consider energy efficiency. Modern energy-saving LED lights can last up to twenty-five times longer than traditional incandescent bulbs, and they cost less to operate as well. In conclusion, lighting is an important aspect of any room or space. Various types of lighting and appropriate lighting design can be used to create a desired atmosphere and energy efficiency.