A Pioneer of Immateriality: The Life and Art of Yves Klein Yves Klein, a name inextricably linked to the mesmerizing depths of International Klein Blue (IKB), remains one of the most profoundly influential and enigmatic figures in post-war European art. Born in Nice, France, on April 28, 1928, into a family steeped in artistic heritage – his father, Fred Klein, was a respected figurative painter, while his mother, Marie Raymond, was a…