There are four general layers of lighting that can and should be used to achieve the best lighting design. They are:
Ambient Lighting provides an area with overall illumination at a comfortable level of brightness, enabling one to see and walk about safely. Ambient lighting can be accomplished with chandeliers, ceiling or wall-mounted fixtures, recessed, track lights, and lanterns outside your home. A basic form of lighting that replaces sunlight, general lighting is fundamental to a lighting plan.
Task Lighting helps you perform specific tasks such as reading, sewing, cooking, homework, hobbies, games, or balancing your checkbook. Task lighting can be provided by recessed lighting, track lighting, pendant lighting, and portable lamps. Task lighting should be free of distracting glare and shadows and should be bright enough to prevent eyestrain.