Satire is a form of writing that uses humor, irony, exaggeration, or ridicule to criticize people's stupidity or vices in order to effect social or political change. Satire targets specific individuals, groups of people, or society as a whole. Common devices used in satire include exaggeration, irony, sarcasm, and understatement. Famous English satires include Gulliver's Travels by Jonathan Swift and A Modest Proposal by Jonathan Swift, which ridiculed landlords by suggesting they eat children. The primary goal of satire is to bring about social reform by criticizing human weaknesses.