Book excerpt: The early modern period has long been seen as an age of great importance in the development of foreign relations. The rise of resident embassies, the development of institutions dedicated to diplomatic activity, and the growth of state bureaucracies were all components in the rise of recognisably modern diplomacy. This was an 'age of secretaries' that assigned important roles in the diplomatic process to a variety of state secretaries, chancellors and ministers. Bringing together case studies drawn from across Europe and Asia, and written by leading scholars in their fields, this collection offers a novel and genuinely trans-regional take on the emergence of modern inter-state relations.