Lighting is one of the primary aspects of interior design and is critical to creating a comfortable, beautiful and functional living environment. Lighting has both aesthetic and practical aspects. Task lighting, ambient lighting and accent lighting are all important in order to create the intended atmosphere, accommodate the various activities within the space and provide sufficient visibility. Task lighting gives a focused light source in an area or directly onto an item of furniture or object to enable close work such as writing or reading. It should be positioned so that it does not create any glare or shadows. Ambient lighting provides a diffuse light to fill a room with soft, general illumination. It is often used to enhance the overall architectural features of a space by producing an even glow over multiple surfaces. Accent lighting is used to highlight the texture and shape of objects in the room. It typically uses a brighter light source, the intensity and direction of which may be adjusted in order to shine on specific features such as a painting or sculpture. The choice of lighting is as much about achieving the desired visual effect as it is about providing a functional light source. Careful consideration should be given to the type and design of fixtures used, the light source, the strength and spread of the light, and its colour and colour temperature. With the right balance of light sources, lighting can make a room feel warm and inviting or help to create a more dramatic atmosphere.