The papers gathered here were presented at the second phase of the international dialogue between the World Alliance of Reformed Churches (Presbyterian and Congregational) and the Mennonite World Conference. There are Reformed and Mennonite studies of the topics, together with the responses of a philosopher of religions, a sociologist, a systematic theologian and a church historian. In the Introduction the dialogue is set in its historical and contemporary ecumenical context, and the Conclusion, drafted by the dialogue participants, has been forwarded to the two world bodies for their consideration and action. This important work will be relevant to all future scholarly research into the growing debate between Reformed and Mennonite communions.