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Douglas N. Walton

    This author is a leading scholar in the field of argumentation theory and logical fallacies. His extensive published works delve into the nuances of persuasion and critical reasoning. Walton's theories have proven invaluable in areas ranging from legal argumentation to the development of artificial intelligence, demonstrating the broad impact of his research. His work inspires students and researchers globally, shaping future discourse in logic and rhetoric.

    Informal Logic
    • 1989

      Informal Logic

      A Handbook for Critical Argumentation

      • 310 pages
      • 11 hours of reading

      This is an introductory guide to the basic principles of constructing good arguments and criticizing bad ones. It is nontechnical in its approach, and is based on 150 key examples, each discussed and evaluated in clear, illustrative detail. The author explains how errors, fallacies, and other key failures of argument occur. He shows how correct uses of argument are based on sound argument strategies for reasoned persuasion and critical questions for responding. Among the many subjects covered are: techniques of posing, replying to, and criticizing questions, forms of valid argument, relevance, appeals to emotion, personal attack, uses and abuses of expert opinion, problems in deploying statistics, loaded terms, equivocation, and arguments from analogy.

      Informal Logic