Rhetoric and rhetorical theory have been gaining in prominence throughout the 20th century. As leaders in all fields give careful attention to issues in communication, rhetoric becomes increasingly central to a range of disciplines. Many of these leaders have shaped rhetorical theory through their work in other fields, and rhetoric becomes more and more difficult to define and delimit. This reference is a guide to major trends and developments in rhetoric and rhetorical theory during the last 100 years. Included are alphabetically arranged entries for major and minor rhetoricians, such as Mikhail Bakhtin, Roland Barthes, Wayne Booth, Paul de Man, Jacques Derrida, Peter Elbow, and Linda Flower. Each entry is written by an expert contributor and includes a brief biography, an analysis of the figure's rhetorical theory, and a current bibliography of primary and secondary sources. The figures included represent a range of rhetorical schools. An extensive introduction discusses these schools, and the volume concludes with extensive bibliographical material.