The month’s question asked what fallacies are. To quote directly:
Fallacies are common types of arguments that have a strong tendency to go badly wrong, or to be used as deceptive tricks when two parties reason together. In some instances they are simply careless errors in thinking, while in other case they are techniques of argumentation used by one arguer more or less deliberately to try to fool another into accepting a false conclusion.
The question (& answer) are found on p. 271 of
Concise Routledge Encyclopedia of Philosophy. The book was published by Routledge in 2000.