Lighting in interior design refers to the illumination of living spaces and how it affects the look, feel, and functionality of a room. It has a major effect on how you perceive the space. Good lighting design can transform an ordinary room into an inviting, attractive, and functional one. Lighting serves many purposes - for example, it can set a mood, create ambience, or provide task lighting. There are three main types of lighting: ambient lighting, task lighting, and accent lighting. Ambient lighting, or general lighting, is used to provide an even illumination throughout a room, and creates a comfortable atmosphere. Common ambient lighting options are ceiling-mounted or wall-mounted fixtures, as well as table and floor lamps. Ambient lighting should be bright enough to comfortably navigate a room, but not so bright that it feels harsh or uncomfortable. Task lighting provides focused illumination for specific tasks, like reading or cooking. It is designed to be brighter than ambient lighting. Examples of task lighting fixtures are floor or table lamps, recessed lighting, and track lighting. Accent lighting is designed to draw the eye to a particular feature in a room, like a painting or sculpture. Track lighting, sconces, and even indirect lighting from a fixture like a floor lamp can be used as accent lighting. The goal of accent lighting is to draw attention to something specific. Lighting is an important design element, and careful consideration should be given to the choice of fixtures and the placement of lighting in a room. By using a combination of ambient, task, and accent lighting, you can create a beautiful, functional, and inviting space.