Realism refers to art or literature that aims to represent subjects accurately and in detail, especially everyday life without idealization. There are three types of realism: fine arts focuses on accurate representation of forms and space; literature presents careful descriptions of ordinary life; and philosophy asserts that objects have existence independent of perception. The document then discusses several American authors - Alexander Posey, Mark Twain, and Kate Chopin - and some of their major realist works, including Twain's Huckleberry Finn and Chopin's The Awakening.