To mark Dr Mary Tanner's retirement from her post as General Secretary of the Church of England's Council for Christian Unity, this book honours her with essays written by bishops and former archbishops, colleagues and ecumenical partners on the themes to which she has been devoted: human community, Christian unity and the Church as communion. Contributers include Robert Runcie, John Habgood, John Austin Baker, Barry Rogerson, Brian Beck, Michael Root and others.