English is used in diplomatic contexts worldwide, including in situations where none of the interlocutors are native-speakers. This ground-breaking volume brings together the perspectives of researchers and practitioners to discuss the needs of those using and learning English for Diplomatic Purposes. Chapter authors use concepts from sociolinguistics, World Englishes, Peace Linguistics and English as a Lingua Franca. Combined with this theoretical background is a pragmatic understanding of the work of diplomacy and the realities of communication, as well as exercises designed to help students, teachers and practicing diplomats reflect on, and develop, their language use. This book represents an important first step in the opening-up of English for Diplomatic Purposes as a distinct field of study and learning, and as such will be required reading for those working and studying in this area.