Georgia O'Keeffe's first wholly abstract series of drawings was called Specials. She made the charcoal drawings in 1915 while teaching in South Carolina, and they marked a decisive break from the representational art training she had received.
The drawings used lines, shapes, and tonal contrasts rather than recognizable objects. O'Keeffe sent some of them to her friend Anita Pollitzer, who showed them to Alfred Stieglitz. Their presentation at Stieglitz's gallery helped bring O'Keeffe into the New York art world.
The series is sometimes confused with O'Keeffe's later abstractions titled Music or with Stieglitz's photographic Equivalents series. Those are related to the broader history of abstraction but are not the name of this 1915 group.
O'Keeffe later returned to recognizable flowers, bones, buildings, and landscapes, often treating them in highly simplified ways. Her career therefore cannot be divided neatly into abstract and representational periods; the two approaches continued to influence each other.