What do ad hominems, appeals to authority, red herrings and the straw man argument have in common? Each of these is an example of the Fallacy of Relevance.
Fallacies of Relevance are logical fallacies in which a key part of the argument is actually irrelevant to its conclusion. People often find these fallacies hard to detect. Understanding how to construct and take apart an argument can help you avoid falling for such fallacies.