Alexander Calder was born in 1898. He was an American sculptor known both for his innovative mobiles (kinetic sculptures powered by motors or air currents), and static 'stabiles', monumental public sculptures. He didn't limit his art to sculptures; he also created paintings, jewellery, theatre sets and costumes.
Calder preferred not to analyse his work, saying, "Theories may be all very well for the artist himself, but they shouldn't be broadcast to other people."
Calder's sculptural work is in many permanent collections worldwide and he also produced many important large public works
Although primarily known for his sculpture, Calder also created paintings and prints, miniatures, theatre set design, jewellery design, tapestries and rugs, and political posters.
An important Calder work is the monumental 'Floating Clouds' (1952–1953) of the Great Hall of the Central University of Venezuala in Caracas. This work is a Unesco World Heritage Site. Calder's clouds were specially designed to combine art and technology, making the auditorium one of the top 5 university auditoriums in the world by sound quality.
He died in 1976, leaving a legacy of artworks which have and continue to influence many artists to this day.