In the mid-1950s, Yves Klein (1928-1962) declared that "a new world calls for a new man." With his idiosyncratic style and huge charisma, this bold artist would go on to pursue a brief but bountiful career, producing more than 1,000 paintings over seven years in an oeuvre now considered a mainstay of postwar modernism. Klein made his name above all with his large monochrome canvases in his own patented hue of blue. International Klein Blue (IKB),...