Iris Marion Young died in August 2006, at the age of only 57. Responsibility for Justice further develops some themes that have been prevalent throughout her life as a scholar, most recently in her book Global Challenges: War, Self-Determination and Responsibility for Justice, which appeared in 2007: structural disadvantage within societies, global interconnectedness, and questions about individual responsibility. Like only very few people in political theory or philosophy, she reflected on these matters as a concerned citizen who also is a teacher and writer. Her effect on my own work comes entirely through an engagement with her writings. Over the years I have time and again found myself in need of an apt way of capturing an underdog’s particular predicament or a neglected group’s specific complaint. And time and again I have found that Iris Young could supply just the right words, subtle enough to capture the pain involved and general enough to make clear why these matters required theorizing. I will continue to consult her work.