Wright was, however, most respected in intellectual circles for his writing about art. In "Modern Painting: Its Tendency and Meaning" (secretly co-authored in 1915 with his brother Stanton), he surveyed the important art movements of the last hundred years from Manet to Cubism, praised the largely unknown work of Cézanne, and predicted a coming era in which an art of color abstraction would replace realism. Admired by people like Alfred Stieglitz and Georgia O'Keeffe, Wright became under his brother's tutelage one of the most progressive (and belligerently opinionated) art critics of the time and helped to organize several shows, including the "Forum Exhibition of Modern American Painters", that brought the most advanced new painters to the attention of audiences on both coasts. He also published a work of aesthetic philosophy, "The Creative Will" (1916), that O'Keeffe and William Faulkner both regarded as a meaningful influence on their thinking about artistic identity.