Which art school did Georgia O'Keeffe attend in New York before becoming known for her modernist paintings?

Georgia O'Keeffe attended the Art Students League in New York.

She studied there in 1907 under William Merritt Chase, a prominent American painter and teacher. Her training at the League included traditional instruction in drawing and painting, and she won a scholarship to the League's summer school in Lake George.

The Art Students League was important to O'Keeffe's early education, but it was not her only art school. She had previously attended the School of the Art Institute of Chicago and later studied at the University of Virginia summer sessions. Her later abstractions moved beyond the academic realism associated with her early training.