Why Interfaith? presents over forty inspiring examples of how people of different faiths come together in order to meet the challenges of our lives and of the world. It comprises contributions from a wide range of people working in interfaith relations in countries within the Porvoo Communion of churches of Northern Europe and the British Isles. Why Interfaith? is a joint project between the Anglican Church in the British Isles and the Church of Sweden, with contributions from the Lutheran Churches of Norway, Denmark, Finland and Iceland, and is offered to all Christians in Europe and beyond as an encouragement to go and do likewise.