Calder's artwork is characterized by its use of suspended sheet metal and wire assemblies, activated in space by air currents, which gave rise to his signature mobiles. His stabiles, built from bolted sheet metal, are monumental outdoor sculptures that demonstrate his mastery of three-dimensional form.

Notable works include 'Constant's Globe' (1976) and 'La Loire' (1956), showcasing Calder's ability to balance abstraction with representational elements. Calder's artistic style is marked by its fusion of modernism and a deep connection to the natural world. His contribution to American art lies in his pioneering work on kinetic sculpture, which paved the way for future generations of artists.

With over 4,000 works created during his lifetime, Calder left an indelible mark on the art world, solidifying his position as one of the most influential artists of the twentieth century.