Diplomacy of Shared Worlds: Ethics, Plurality, and Co-Creation in Cultural Engagement offers a timely reimagining of cultural diplomacy for an age of multipolarity, digital saturation, and intersecting global crises. Moving decisively beyond the logics of strategic projection, national branding, and soft power, this book advances a human-centred vision grounded in three interlocking ethical imperatives: authenticity, reciprocity, and human dignity. It argues that the future of cross-cultural engagement lies not in influencing others, but in co-creating shared spaces of meaning-where difference is not managed but embraced as a source of mutual enrichment. Throughout, the book upholds a steadfast commitment to epistemic pluralism, rejects instrumentalism and cultural imperialism, and centres the agency of communities as co-authors of their own narratives. Diplomacy of Shared Worlds is not a manual of tactics, but an invitation to practice cultural engagement not as a tool of statecraft, but as a shared, humane vocation in the building of pluralistic, resilient, and interconnected worlds.