The Sixth World Conference on Faith and Order of the World Council of Churches (WCC) will take place from 24 to 28 October 2025 near Alexandria, Egypt, around the theme “Where now for visible unity?” The conference will be the centrepiece of the WCC’s activities to mark the 1700th anniversary of the first Ecumenical Council of Nicaea, a key moment in the history of Christian faith and for the ecumenical journey today.This booklet provides the context for and overview of the proposed conference.