Lighting is an integral element of any space. It is used to illuminate or create mood for a room and often acts as a rooms focal point. Lighting can be natural or artificial, and can be used indoors or outdoors. Indoor lighting is mostly artificial. It includes ceiling lights, lamps, and floor and desk lamps. Ceiling lights are the main source of illumination in any room and are usually concentrated in the centre of the room. Lamps and floor lamps can be used to create a more intimate atmosphere in a room. They may focus on a certain area and can be tastefully decorated to add a decorative touch. Desk lamps can be used for reading and studying, and often have a focused light that makes it easier to concentrate. Outdoor lighting is necessary for safety and security purposes. Outdoor lighting typically illuminates pathways and entryways and can be used to highlight landscaping and gardens. Outdoor lighting is often motion activated or can be operated by a timer in order to save energy. The use of light in a space can be used to create atmosphere or for general illumination. Lighting can also be used to highlight architectural features or artwork in a room. Natural light is an important source of illumination and it is important to plan window placement in a room to take advantage of natural light. Lighting plays an important role in any space. From general illumination to creating atmosphere and highlighting architectural features, lighting is a crucial part of space design.