Alexander Calder, who was known as ‘Sandy’, was an American sculptor from Pennsylvania. His father was a renowned sculptor, Alexander Stirling Calder, and his grandfather and mother were equally as successful. Safe to say, sculpting is in his DNA. Alexander invented wire sculptures and the mobile, a type of moving art (kinetic art) that relied on careful weighting to achieve balance and suspension in the air. Imagine the thing you hang over an infant’s crib that rotates. In this podcast, we're discussing whether it was justified or not for Calder's inventions to be altered after being donated.