Interior lighting is an important factor that influences the creation of coziness and comfort in any room. However, the correct calculation, selection of lamps and schemes of their placement - a very difficult task that should not be ignored. People's mood, their work productivity, psycho-emotional state and even well-being depend on the quality of lighting in the room. In addition, it can be used to successfully emphasize the interior, or, conversely, to show all the shortcomings of the design. To avoid this mistake, it is important to know how to apply one or another method of interior lighting in practice, and then choose the best one.