Lighting is the systematic use of light to achieve a practical or aesthetic effect. Lighting includes the use of both natural and artificial light sources like lamps and light fixtures. Proper lighting should be able to provide the necessary illumination for each person to be able to do his/her task in as natural and as comfortable an environment as possible. Good lighting is essential for any space to be attractive as well as functional. This means not only the appropriate intensity (amount of light) but also the correct color temperature, which needs to be well balanced to create the desired atmosphere or ambiance. Lighting also enables us to navigate safely through our everyday spaces. Indoors, lighting can be used to manipulate a space's atmosphere as well as to display artwork and other objects. Task lighting is used to focus on specific pieces of furniture and to support the activities of people living or working in that space. In terms of outdoor lighting, it provides light to certain areas for safety and security and can also be used to highlight certain landscape features. In addition to providing its primary purpose, lighting can also be used as a form of decoration. Lighting is an important aspect in interior design since it is the key to highlighting the mood, character and design elements of a space. Lighting also plays a huge role in energy efficiency. By making the right lighting choices, we can save energy and money. In conclusion, effective lighting is vital for interior design, and should be carefully considered. It can be used for both practical and aesthetic needs and its uses are limitless.