An example of such author can be Benjamin Franklin. He was widely read by people throughout the colonies and his Poor Richard's Almanacs were a common household items. His audience were the common people and his purpose was to educate them and help people become better. Hi style was simple and direct, often full of word plays and funny anecdotes.
<em>Writers use genres because of the cognitive and social work they accomplish. Using the patterns of a genre accepted by readers for accomplishing their purposes allows them to establish a working relationship with readers. But familiarity with genres can also make life easier for writers.</em>
An antagonist wants to defeat the protagonist in whatever conflict there is between them. they are the "villain" in the story.