[5] He drew inspiration from the idealism of the Arts and Crafts movement and his political views as a communist.

[8] In the 1970s as a professor at The Humanitarian Society, he founded the Nuova Tendenza art movement in Milan.

In addition, the Triennale, Milan is exhibiting a tribute to Mari, curated by Hans Ulrich Obrist with Francesca Giacomelli.

[17] He donated the archive of his designs to the city of Milan on the condition that it may not be displayed for 40 years.

[18][4] He married art critic, theoretician and performance artist Lea Vergine, in 1978.