In 1892, Sloan met Robert Henri, a talented painter and charismatic advocate of artistic independence who became his mentor and closest friend. Henri encouraged Sloan in his graphic work and eventually convinced him to turn to painting. They shared a common artistic outlook and in the coming years promoted a new form of realism, known as the "Ashcan school" of American art. In 1893, Sloan and Henri founded the short-lived Charcoal Club together, whose members would also include Glackens, George Luks, and Everett Shinn.