From 1915 to 1927, Henri was a popular and influential teacher at the Art Students League of New York. He provided for each student not a style so much as an attitude, an approach to art. Henri's philosophical and practical musings were collected by former pupil Margery Ryerson and published as The Art Spirit (1923), a book that remained in print for several decades. Henri's other students include George Bellows, Arnold Franz Brasz, Stuart Davis, Edward Hopper, Rockwell Kent, Henry Ives Cobb, Jr., Lillian Cotton, John Sloan, Minerva Teichert and Yasuo Kuniyoshi. Filled with valuable technical advice as well as wisdom about the place of art and the artist in American society, this classic work continues to be a guide for artists concerned with the process of artistic creation.