This chapter deals with the question of hierarchy in liberal orders. English School theorizing has, since Hedley Bull's seminal work, regarded reciprocal international society institutions such as international law as the foundations of international order. Yet recent scholarship has indicated that the way reciprocal institutions have historically been practised has portrayed international society institutions as being just as hierarchic as they are reciprocal. Drawing together English School theory and practice analysis in International Relations, the chapter illustrates how both reciprocity and hierarchies in liberal order emerge out of the historical practices of international politics. Examples look at the conventions of diplomacy and international law to understand continuity and change in liberal orders' hierarchies and reciprocal practices.