Nasreen Mohamedi never exhibited her photographs during her lifetime. “Autobiography of a Line,” curated by Sasha Altaf, was one of the largest posthumous showings of her photographic works since her death in 1990, along with a few prints and paper cutouts. Her interest in photography may have emerged from her family’s photographic-equipment business in Bahrain. Whether her use of the camera was a casual by-product of her travels or a self-conscious project remains unknown. Mohamedi could well have made these images as studies for the ink-and-graphite works on paper for which she became best