On 2015, March 15 and 28 Lectures about Interaction of an artit's work on the environment and Energy in the spaces, by Andrea Amato and Viola Di Massimo. A work is examinated only by the energetic viewpoint and it will be illustrated as a work may acts on the environment. In its evolution the nature highlights mahematical ratios very useful to that who knows and utilizes them getting advantages and energy. The artists of every time, deliberately or not, attain from these ratios drawing armony and energy. This will cause a substantial difference in the observer that will enjoy of this harmonic choice and feel the emotional influence.So in a space too a work can cause differences changing the energetic flow and contibuting to the environment decongestion.

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