Good Reasoning Matters!
A Guide to Critical Thinking in a Digital Age, Sixth Edition
  • Publication Date: November 15, 2025
  • ISBN: 9781554816842 / 155481684X
  • 520 pages; 7" x 9"

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Good Reasoning Matters!

A Guide to Critical Thinking in a Digital Age, Sixth Edition

  • Publication Date: November 15, 2025
  • ISBN: 9781554816842 / 155481684X
  • 520 pages; 7" x 9"

Good Reasoning Matters! teaches students how to decipher, evaluate, analyze, construct, and engage in argument. This sixth edition incorporates many timely topics, including the impact of artificial intelligence and social media on how we propose and respond to arguments. The instruction in the book is rooted in traditional philosophical understandings of argument, but is expanded to account for the complexities that characterize real-life arguments. This includes an examination of the role that images, sounds, and other non-verbal components play in attempts to convince us of some point of view—in advertising, television, YouTube, film, interpersonal exchange, and elsewhere. Numerous and varied exercises—formative within the chapters and summative at their end—help students improve their reading, reasoning, and writing skills. Instructors will find the text is informed by research in digital pedagogy and works well in a variety of course formats: in-person, remote, hybrid, and synchronous or asynchronous delivery. The authors’ expertise in argumentation theory and decades of teaching experience ensure that this book prepares students for the complexities of arguing in the 21st century.

Good Reasoning Matters! can be ordered on its own, or in a package that also includes Karl Laderoute’s A Pocket Guide to Formal Logic at no additional cost.

Comments

“This is the book I wish we’d used in my undergraduate critical thinking class! It provides a comprehensive overview of reasoning skills and argument, along with a wealth of examples taken from social media, the internet, newspapers, magazines, and philosophy. More than any other text, it’s up to date on developments in informal logic and the study of argumentation, addressing an impressive array of related topics. It includes unique discussions of arguments and audiences, argumentation schemes, emotional arguments, and the use of images and multimedia in arguing. The graduated exercises will leave students well prepared for further studies in logic, philosophy, communications, rhetoric, and any other subject. I highly recommend the sixth edition of Good Reasoning Matters! ” — David Godden, Michigan State University

“The sixth edition of Good Reasoning Matters! is a clear leader among critical reasoning textbooks. Written by experts in argumentation theory, informal logic, and mediation, this edition blends cutting-edge instruction on the fundamentals of reasoning with highly relevant new content on deep disagreement, reasoning and artificial intelligence, non-linguistic modes of argument, and alternative dispute resolution. Additionally, Good Reasoning Matters! offers a rich selection of contemporary examples and well-designed exercises to help students gain the skills they need to thrive as reasoners. All-round, a terrific text!” — Moira Howes, Trent University

“This updated and streamlined sixth edition of a tried-and-tested critical thinking textbook will be enthusiastically welcomed by students and instructors alike. It follows a clear progression of concept and skill development through each chapter and includes many new exercises that apply the ideas and techniques under discussion. I look forward to using this book in my own teaching.” — Paul Simard Smith, University of Regina

Preface

PART ONE: INTRODUCING ARGUMENTS

1 MAKING ROOM FOR ARGUMENT

  1. Critical Thinking
  2. Acts of Arguing
  3. Identifying Argument Components
  4. Audiences
  5. Opponents and Proponents
  6. Arguments in a Digital Age

2 ARGUMENTS, WEAK AND STRONG

  1. Burden of Proof
  2. Premise Acceptability
  3. Validity
  4. Assessing Arguments
  5. Applying the Criteria: Conditional Arguments

3 STANDARDIZING ARGUMENTS

  1. Inference Indicators
  2. Arguments without Indicator Words
  3. Hidden Conclusions
  4. Hidden Premises
  5. Arguments and Explanations

4 ARGUMENT DIAGRAMS

  1. Simple and Extended Arguments
  2. Argument Diagrams: Simple Arguments
  3. Diagramming Extended Arguments
  4. Linked and Convergent Premises
  5. Diagramming Your Own Arguments

PART TWO: JUDGING ARGUMENTS

5 DEFINITIONS: SAYING WHAT YOU MEAN

  1. Making Meanings Clear
  2. Vagueness and Ambiguity
  3. Equivocation and Verbal Disputes
  4. Formulating Definitions
  5. Rules for Good Definitions

6 PREMISES: CONSISTENT, TRUE, ACCEPTABLE

  1. Premise Acceptability and Its Complexities
  2. Consistency and Inconsistency
  3. Truth and Acceptability
  4. Questionable Premises
  5. Conditions of Acceptability
  6. Fallacies of Unacceptability

7 LINKING PREMISES TO CONCLUSIONS

  1. Relevance
  2. Fallacies of Relevance
  3. Sufficiency
  4. Putting It All Together

PART THREE: REAL LIFE COMPLICATIONS

8 MODES OF ARGUING

  1. Argument Flags
  2. Modes of Presentation
  3. Modes of Feeling
  4. Symbols and Metaphors
  5. Alternative Dispute Resolution
  6. A Complex Example

9 READING BEYOND THE LINES

  1. Belief Systems
  2. Cognitive Bias
  3. Illegitimate Bias
  4. Audiences and Deep Disagreement
  5. Supplemented Diagrams

PART FOUR: SCHEMING IN ALL ITS FORMS

10 SCHEMES AND COUNTER-SCHEMES

  1. What’s a Scheme?
  2. Categorical Syllogisms
  3. Venn Diagrams
  4. Argument by Showing

11 LOOKING FOR THE FACTS

  1. Generalizations
  2. Polling
  3. General Causal Reasoning

12 THINKING LIKE A SCIENTIST

  1. Particular Causal Reasoning
  2. Arguments from Ignorance
  3. Scientific Reasoning
  4. The Scientific Method
  5. Summary

13 SCHEMES OF VALUE

  1. Slippery Slope Arguments
  2. Arguments by Analogy
  3. Appeals to Precedent
  4. Two-Wrongs Reasoning

14 PEOPLE SCHEMES

  1. Appeal to the Person
  2. Ad Populum Arguments
  3. Arguments from Authority
  4. Ad Hominem
  5. Arguments against Authority
  6. Appeal to Eyewitness Testimony
  7. Guilt (and Honour) by Association
  8. Other Cases

PART FIVE: PUTTING IT ALL TOGETHER

15 ESSAYING ARGUMENTS

  1. The Good Evaluative Critique
  2. The Good Argumentative Essay
  3. A Student’s Paper
  4. Conclusion

Glossary of Key Terms
Credits
Index

Leo Groarke is Professor of Philosophy at Trent University. Christopher W. Tindale is Professor of Philosophy at the University of Windsor. Linda Carozza is an instructor at York University.

KEY FEATURES

  • • Examines the logical, rhetorical, and dialectical features of arguments.
  • • Up-to-date coverage of the methods and contexts through which people argue in the real world, including discussions of AI and the role of emotion in arguing.
  • • Surveys many modes of arguing, including those that involve non-verbal elements (music, photographs, video, sounds, etc.).
  • • Graduated, streamlined exercises that develop different cognitive skills.
  • • Discusses the varied applications of critical thinking to academic, professional, and personal settings.

Good Reasoning Matters! can be ordered on its own, or in a package that also includes Karl Laderoute’s A Pocket Guide to Formal Logic at no additional cost.

A student companion website provides answers or guidance to selected exercises within the book, as well as links to additional readings and images referenced in the text.

An instructor companion website provides additional quiz questions that can be integrated with any Canvas-based Learning Management System for automated assessment and ease of access. The website also hosts thought-provoking discussion questions to use in class and lecture slides for each chapter of the book.