Principles of Fashion govern how fashion as a system behaves over time, across seasons, across cultures, across economies. Fashion is genuinely principled. It mirrors who we are as a society at any given moment. Understanding these principles does not make you a slave to trends. It makes you a more conscious, confident dresser; and always the most stylish people in any room. Forecasters do not need to predict a war or a recession to factor these things in. They simply need to