Questions surrounding the understanding of "communion" are a significant feature of much contemporary ecclesiology, but their prominence calls attention to wider questions regarding ecclesiological method. Brian Flanagan addresses the questions of how to characterize a systematic ecclesiology and the possibility of a systematic communion ecclesiology through an investigation of the concept of communion in the work of Jean-Marie Tillard, OP. Tillard's theology is noted as the most prominent Roman Catholic communion ecclesiology. Flanagan argues that Tillard contributes to systematic...