The way in which states are dealing with one another has changed more in the past decades than in the 350 years since the Peace of Westphalia. This accessible volume supplements the analyses of more familiar topics in the introductory literature on diplomacy. Experts from nine countries examine some of the ways in which diplomatic practice after 1945 has adapted to fundamental changes in international relations, or is still trying to come to terms with them. This book gives insights into a transforming diplomatic landscape and the changing forms and modalities of contemporary diplomacy.