IKB 191 is a key 1962 work by whom?
IKB 191 is a key 1962 work by the French artist Yves Klein. It is one of his signature monochrome paintings, made with his own trademarked shade of ultramarine blue, known as International Klein Blue (IKB). The painting is a large, untitled canvas that is entirely covered in IKB, with a smooth, uniform surface. It is considered to be one of Klein's most important works, and it is currently on display at the Museum of Modern Art in New York City.