Fallacies in advertising are deceptive techniques used to promote products or services by manipulating consumers’ perceptions and exploiting their biases. These fallacies can take various forms, such as the bandwagon fallacy (appealing to popularity), the ad hominem fallacy (attacking the source), or the straw man fallacy (misrepresenting an argument to make it easier to attack). By recognizing and understanding these fallacies, consumers can become more critical of advertising claims and make informed decisions.