This alphabetically arranged, one-volume work provides short definitions where possible and longer explanations where necessary of rhetorical concepts. Included are classical and historical definitions, while more recent trends and developments are also recognized.
Encyclopedia of Rhetoric and Composition: Communication from Ancient Times to the Information Age[PN172 .E53 1996 Reference ]
This alphabetically arranged, one-volume book "provides an introduction to rhetoric, including the major periods and personages, concepts and applications." While the interdisciplinary nature of rhetoric is addressed, this resource also takes into account the work of theorists who are "reconceptualizing rhetoric in its own terms."