Book excerpt: In an age of diversity and pluralism, asks Hiedlebaugh (communication studies, Oswego State U. of New York), how can people talk productively about those issues that most divide them. Two main sub- questions generated by her investigation are how people can reason together to make good decisions when standards for what counts as reasonable vary profoundly, and how can they know how to produce good rhetoric when standards for what counts as good are shifting. c. Book News Inc.