This week I attended the workshop “European Diplomatic Practices: Patterns, Approaches, Methods” at the Swedish Institute of International Affairs, Stockholm. The workshop brought together a range of scholars working with tools from International Practice Theory, notably the community of practice approach to analyze European diplomacy. The workshop revealed a fascinating plurality of how one can draw on practice theory to study diplomacy, and spurred an interesting discussion on methods, but also on some core puzzles, such as how to grasp the relation between routine and change, or knowledge and action.