Lighting plays an essential role in our life. It has the power to influence our mood, dictate how rooms look and how we function in them. Good lighting contributes to a sense of relaxation, helps to ward off fatigue, aid concentration and make us feel more at ease. Living rooms, dining rooms and bedrooms should be well-lit. A simple overhead lighting fixture is generally not enough, as artificial ambient light can create a harsh environment which strains the eyes. Instead, use multiple task and accent lights to cast a warm glow throughout the room. Bathrooms should be softly lit to create a relaxed atmosphere, while study and work areas should have bright lighting to help concentration. Natural light from windows is also beneficial in rooms of every type, as is task lighting which directs luminosity onto specific spaces. Lighting is not only functional but also decorative. It can look stylish and make a focal point within a room, while a dimmer switch is useful for changing the intensity of the lights in response to different circumstances. Overall, lighting is one of the most important aspects of interior design. It can influence how rooms look and functions, while also providing a source of relaxation and calm. By using task and accent lights, natural lighting and stylish light fixtures, its possible to create a warm and inviting atmosphere in each room.