New Orleans artist George Valentine Dureau (1930-2014) has always been an enigma. His status as an important artist gained momentum beginning with his first exhibition at the New Orleans Museum of Art, then the Isaac Delgado Museum of Art, in the mid-1960s. Not only did his career undergo a meteoric rise, but his work proved at once controversial and provocative, nuanced and groundbreaking. Critics and collectors embraced his bold images, describing...