metal, and structural steel. This exploration has transformed over time into a focus on H-beams and heavy steel plates. Many of the pieces contain sections that are allowed to swing and rotate giving the overall forms a considerable degree of motion. He prides himself on his hands-on approach to the fabrication and installation of his work. Di Suvero pioneered the use of a crane as a sculptor's working tool. His style is associated with the abstract expressionism movement but directly evokes the spirit of the Russian post-revolution constructivism. Constructivism is strongly associated with concepts of a utopian socialist reconstruction but came crashing down when the Stalin and Hitler empires failed. Di Suvero is the first artist post-war to revive the constructivist movement. The sculptures can be touched, and they are resistant enough to be climbed on. Some of his work includes: Pre-Columbian (1964), acquired by the Fine Arts Museums of San Francisco in 2000 Bunyon's Chess (1965) (Olympic Sculpture Park) Poland (1966) Are Years What? (for Marianne Moore) (1967) Snowplow (1968) Victor's Lament (1969-1970) The Lovers (1971-1973) For Handel (1975), Western Washington University, Bellingham, Washington The Calling (1981-1982)Shoshone (1982), public art sculpture, Los Angeles, California Iroquois (1983) Aurora (1992-1993), purchased by the National Gallery of Art from the Gagosian Gallery (NY) in 1996 E=MC 2 (1992-1993), moved from France to the Storm King Art Center in upstate New York in 2019, the artist's largest piece so far. Galileo (1996), acquired by the Daimler Art Collection in 1998 Joie de Vivre (1998) Pax Jerusalemme (1998-1999), Legion of Honor, San Francisco The Sieve of Eratosthenes (1999), Stanford UniversityDeclaration (2001), public art sculpture (originally temporary, considered permanent as of 2020), Venice Beach, Los Angeles, CaliforniaOrion (2006), arriving at the University of Michigan Museum of Art in 2008 as a long-term loan and purchased in 2019 Clock Knot (2007) Paintbrush (2009), located on the Pratt Institute campus. Di Suvero's sculptures and career were the subjects of the 1977 film, North Star: Mark di Suvero. The film was produced by François De Menil and by art historian Barbara Rose, and it featured music composed by Philip Glass. The film was released as a DVD in 2012. In May 2013, some of his most famous sculptures were exhibited in the Crissy Field park of San Francisco. Critics Some critics deny the novelty of di Suvero's art, arguing he just inflated an established concept to greater dimensions.