Book excerpt: "The Evolution of a UCC Style: Essays in the History, Ecclesiology, and Culture of the United Church of Christ" focuses on the development of themes that define the United Church of Christ (UCC). Randi Walker examines the ethos and culture of the UCC rather than simply describing its structures, and addresses the themes of inclusiveness; diversity of theological heritage (Reformation, Enlightenment, and Pietism); congregational polity (the one and the many); liberal theological approach; and ecumenical spirit. Walker also takes a look at the tensions and boundaries contained within each theme.