Lighting is the use of artificial light in order to increase the visibility of an environment. Historically, lighting has been used in the form of candles, lanterns, and oil lamps to give people a source of light to see throughout dark hours. Nowadays, lighting is needed to illuminate our homes, offices, streets, roads, theatres, and buildings. Lighting has several different uses. In homes, lighting is used to provide visibility to perform tasks such as cooking, eating, and other activities. In offices, lighting is used to increase productivity, reduce stress, and improve safety in the work place. In public spaces such as streets, roads, and buildings, lighting plays an important role in providing an inviting and illuminated environment which makes people feel secure and safe. In terms of the environment, lighting plays an important role in preserving the night sky by reducing light pollution. When lighting is directed downward, it allows for more efficient use of energy and decreased glare, while reducing harmful UV and Blue Light emissions. In conclusion, lighting has been used for centuries and has been transformed over the years to increase visibility and safety in our environments. Lighting is now used to create a comfortable and inviting environment for people, while also being more conscious of our environment and the effects of light pollutions.