The big picture: Sally Mann captures girls on the cusp of womanhood

For her classic series At Twelve, the American photographer created a collective portrait of adolescent girls, including world-weary Olivia pictured in her yardYou can see a whole world – submerged, waiting, ready to burst forth – in the face of any adolescent girl. In Sally Mann’s At Twelve: Portraits of Young Women, she captures this special, unstable time of life. In this image, a plaited-haired girl sits in a chair, head in hand like a world-weary grownup. This is Olivia, &