Logical fallacies are, by definition, errors in reasoning. When you make a logical fallacy, you render your argument invalid (and sometimes silly) because there are obvious gaps or holes in the logic.

When you communicate, one of your primary goals is to establish credibility. As a writer or speaker, it’s critical that you substantiate and give support to claims so that you can be sure to get your audience to, at the very least, see your argument as reasonable and logical. But this isn’t always easy. One of the most common mistakes writers and speakers make is they fill their arguments with logical fallacies, thus making their arguments more or less invalid.

Review the list below of the most common logical fallacies made when making claims and arguments.

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