Born in 1926 in Montefeltro, he lived his childhood and education near Pesaro. He studied architecture and, like his brother Giò, made his debut as a draftsman, decorator and metal craftsman. Over the years he teaches in the art departments of American universities: at Stanford University, Berkeley, Mills College. In 1996 he established the Arnaldo Pomodoro Foundation, which in 2005 began its exhibition activities at its headquarters at 35 Via Solari in Milan. In 1954 he moved to Milan. His works of the 1950s are high-reliefs where a writing unprecedented in sculpture emerges. He switched to tuttotondo in the early 1960s and then to large-scale. He exhibits in galleries and museums around the world including: the Rotonda di via Besana in Milan (1974), the Forte Belvedere in Florence (1984), the Gardens of the Palais Royal (2002), in the city center of Lugano (2004), along the city walls of Paestum (2005), Palazzo Magnani in Reggio Emilia (2006), the Priamar Fortress in Savona (2007).  He also presents traveling exhibitions in the most important American museums. His works are in large squares (Milan, Copenhagen, Brisbane, Los Angeles, Darmstadt), at Trinity College in Dublin, in the Cortile della Pigna of the Vatican Museums, in the forecourt of the United Nations in New York and in major public collections. Over the years he also devoted himself to set design with spectacular machines in major Italian theatrical occasions; most recently he created the sets and costumes for the opera "Teneke" by F. Vacchi premiered at Teatro alla Scala (2007) directed by E. Olmi and conducted by R. Abbado. He received numerous official awards in Sao Paulo, Brazil (1963), Venice (1964), Pittsburgh (1967), the Praemium Imperiale in Tokyo (1990), the Honorary Degree in Letters in Dublin University (1992) and the Degree in Building Engineering-Architecture from the University of Ancona (2001), the Lifetime Achievement Award of the International Sculpture Center (2008). He has been a member of the Accademia Nazionale di San Luca since 1989.