As part of the celebration of the International Design Days, a lecture was held at the Design Center, Dandan Axis Design, at the National Office for Handicrafts, under the title "Light Design", in cooperation with the National Office for Handicrafts, Creative Tunisia and the Embassy of Italy, in the presence of the international Italian designer "Mario Nanni". This lecture was attended by about 120 male and female students from the Higher School of Technology and Design in Dandan in the specialty of interior engineering and scenography to benefit from the intervention made by the international Italian designer Mario Nani, which aims at renewal and development in the world of lighting while highlighting the basic function of lighting in the interior space and scenography as An essential pillar of interior space engineering and its suggestive cultural significance.