Mark Twain, formerly known as Samuel Langhorne Clemens, is an American writer and speaker. "Mark Twain" is his pen name, which was originally a term used by sailors of Mississippi River to indicate the water depth measured on the waterway.
Mark Twain is the founder of American critical realism literature. Mark Twain created a large number of works in his life, involving novels, plays, essays, poems and other aspects. In content, his works criticize unreasonable phenomena or ugliness of human nature, and express the writer's strong sense of justice and care for ordinary people as a compositor and sailor. Stylistically, both experts and ordinary readers believe that humor and satire are his writing characteristics.