Lighting is one of the most important aspects of interior and exterior design. It helps enhance the look and feel of a space, creating dramatic focal points, providing task lighting for utility and comfort, and creating the desired atmosphere around a living space or office. Indoor lighting typically consists of ceiling fixtures, wall fixtures and lamps. Ceiling fixtures, which are usually the main sources of light, come in many forms such as flush mount, recessed and spotlights. Wall fixtures are usually accent lights with decorative design elements, and can be placed to create a focused glow or provide an ambient light. Lamps can be used to create flexible task lighting or a softer light for reading and relaxing. Lighting can also be used in outdoor spaces, providing an inviting atmosphere to entertain guests, and a visual guide for safety. Outdoor security lights can be used for greater visibility in dark areas. Landscape lighting can be used to create ambiance as well as highlighting architectural features. Lighting must be selected thoughtfully to ensure the design is both aesthetically pleasing and functionally practical. When selecting lighting for a space, certain factors should be considered, such as the size of the room, the size of the fixtures, the type of bulb and the desired effect. Through thoughtful use of lighting, an area can be enhanced to reflect one's tastes and bring the interior or exterior to life.