Sources & Resources

Listed here are quality general resources on logical fallacies, as well as sources of information used in The Fallacy Files. Specific sources and resources on individual fallacies will be found at the end of the particular file for each fallacy. If you know of any good resources which are not listed here but should be, or there is a broken link to a resource, please let me know.

Bibliographies | Books | Email Course | Fun | Lesson Plans | Mini-Courses | Online Article | Web Indices | Weblogs | Websites | Non-English Websites

Web Site


By Dr. Michael C. Labossiere. Based on a Macintosh tutorial, it provides short explanations of 42 fallacies, with multiple cooked-up examples. A reliable source, hosted by the Nizkor Project. Also see the PDF version in the "Books" section, below.

Non-English Web Sites


Fallacy Files Weblog

By Gary Curtis. The weblog that accompanies this website, it includes examples taken from the media and current events, as well as puzzles, paradoxes, book reviews, and links and pointers to articles and books of current interest.

Web Indices

Critical Thinking on the Web: Fallacies

Tim van Gelder's fallacies category in his guide to quality critical thinking resources on the web. Some overlap with this list, but also some differences which may help to give the reader a different perspective. Unfortunately, it hasn't been updated for many years.

Fun with Fallacies

Fallacies can be fun and funny! The Fallacy Files has two humor pages:

  1. Funny Fallacies

    A short collection of jokes and funny signs based on fallacies.

  2. Humorous Headlines

    Several amusingly ambiguous headlines.

Funny articles about fallacies from elsewhere on the web:

Online Article


By Bradley Dowden. An article from the Internet Encyclopedia of Philosophy, written by one of the two editors of that reference work. Consists of a short introductory discussion of the scholarly controversies over fallacies, followed by a long list of named fallacies. There are 164 names of fallacies, though many of the fallacies have multiple names. I count 103 fallacies with substantive entries, though necessarily each entry is brief since the entire article is one long webpage! Unfortunately, the examples given are either short cooked-up ones, or the typical textbook chestnuts. If you can't find a fallacy listed in the Fallacy Files, this would be the most likely place to find a short but sound explanation of it on the web.

Lesson Plans

Email Course

Logic Basics: Understanding Arguments

By Gary Curtis. This course consists of ten short lessons delivered by email daily by a company called Highbrow. It's a very brief introduction to the fundamental concepts of logic needed to analyze and evaluate reasoning―and, I might add, to understand fallacies. It's a Premium course, which means it's not free, but you can try out Highbrow's Premium service for a month for free, and the course only takes ten days!


Decision Academy

Mini-courses are short, online courses. The Clearer Thinking organization's Decision Academy offers free mini-courses on "Rhetorical Fallacies", "Probabilistic Fallacies", "The Planning Fallacy"―which I don't think is a logical fallacy―and "The Sunk Cost Fallacy"―which I'm often asked about―and some related ones on improving decision-making.



Acknowledgments: Thanks to C. Leonhardt, Aislinn Pluta, Vance Ricks, Paul Sobolik, and Alfred Uhl.

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