In the 21st century, new kinds of challenges resulting from interdependence among states and globalization have had a determining impact of the conduct of diplomacy. Diplomacy has become multifaceted, pluri-directional, volatile and intensive, due to the increased complexity in terms of actors, dialogues subjects, modes of communication, and plurality of objectives. This unique text, written by a leading scholar and Foreign Service expert, examines all such factors to provide the definitive guide to diplomacy as it is practiced today. With a multitude of examples from around the world, including the US, UK, EU, Africa, Asia, and Latin America, the book covers the spectrum of diplomacy practice, including regional diplomacy, diplomacy of small states, performance management, handling of decisions and crisis, use of information technology, and reform in foreign ministries. Also included are chapters on craft skills and practical exercises. 21st Century Diplomacy will be essential to anyone learning diplomacy, and will also support courses in international relations, foreign policy, and intercultural communication.