Though perhaps best known for his paintings, Cy Twombly (1928-2011) developed a singular body of sculpture over the course of his 60-year career. These sculptures are made from quotidian materials such as wood, metal and found objects, to which he applied a delicate and unifying layer of white paint. The resulting group of works appear not so much as a progression as a series as they do, individually, as a metamorphosis of material. This book marks...