Continuing a series of posts calling attention to selected resources featured in Appendix 1, "Resources for Ecumenical Engagement," in Ecumenism Means You, Too: Ordinary Christians and the Quest for Christian Unity (Cascade Books, 2010):
Harding Meyer's That All May Be One: Perceptions and Models of Ecumenicity (trans. William G. Rusch; Grand Rapids, MI: William B. Eerdmans, 1999) is a more technical survey of the diverse theoretical approaches behind the practice of ecumenical encounter throughout the history of the ecumenical movement. This book provides detailed explanations of terms and categories that have become commonplace in ecumenical discussions, such as “differentiated consensus” and “unity in reconciled diversity.”
Interested in Ecumenism Means You, Too? Order the book directly from Cascade Books or via Amazon.