Chapter 1, Introduction: History and Theories of DiplomacyThierry Balzacq, Frédéric Charillon, Frédéric Ramel PART ONE: PLACES AND VECTORS OF DIPLOMACY IN THE TWENTIETH CENTURY Chapter 2, Bilateral RelationsAlice Pannier Chapter 3, Multilateral DiplomacyFranck Petiteville, Delphine Placidi-Frot Chapter 4, ParadiplomacyStéphane Paquin Chapter 5, Club and Group DiplomacyChristian Lechervy Chapter 6, Communication and Diplomacy: Change and ContinuityBrian Hocking Chapter 7, From Negotiation to MediationValérie Rosoux Chapter 8, Rituals and DiplomacyThierry Balzacq Part TWO: THE ACTORS Chapter 9, States and their Foreign ServicesChristian Lequesne Chapter 10, Intergovernmental OrganizationsCédric Groulier, Simon Tordjman Chapter 11, Supranational DiplomatsStephanie C. Hofmann and Olivier Schmitt Chapter 12, Sub-State Diplomacies: Regions, Parliaments and Local Authorities Benjamin Puybareau, Renaud Takam Talom Chapter 13, Diplomacy by Non-State ActorsAuriane Guilbaud Chapter 14 Individuals and DiplomacyPierre Grosser PART THREE. SECTORS Chapter 15, Economic and Corporate Diplomacy Laurence Badel Chapter 16, Cultural Diplomacy Marie-Christine Kessler Chapter 17, Environmental DiplomacyAmandine Orsini Chapter 18, Humanitarian DiplomacyElise Rousseau, Achille Sommo Pende Chapter 19, Defense DiplomacyFrédéric Charillon, Thierry Balzacq, Frédéric Ramel Chapter 20, Entertainment Diplomacy Maud Quessard-Salvaing Chapter 21, International Expertise and the Diplomacy of InfluenceNicolas Tenzer Chapter 22, Conclusion. Overwhelmed DiplomatsFrédéric Ramel, Thierry Balzacq, Frédéric Charillon.