"The year is 1995, and email is new. Selin, the daughter of Turkish immigrants, arrives for her freshman year at Harvard. She signs up for classes in subjects she has never heard of, befriends her charismatic and worldly Serbian classmate Svetlana, and, almost by accident, begins corresponding with Ivan, an older mathematics student from Hungary. Selin may have barely spoken to Ivan, but with each email they exchange, the act of writing seems to...