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David Zarefsky

David Zarefsky is Owen L. Coon Professor Emeritus of Argumentation and Debate, and professor emeritus of communication studies at Northwestern University. He is a former president of both the National Communication Association and the Rhetoric Society of America, and he has received awards for distinguished scholarship and service from both organizations. He is the author of Lincoln, Douglas, and Slavery: In the Crucible of Public Debate , among other books .