The document discusses author's purpose and the three main purposes for writing: to entertain, inform, or persuade. It provides examples for each purpose and instructs how to determine an author's purpose by considering if a text is a story, poem, or play meant to entertain; teaches or shows how to do something meant to inform; or tries to get the reader to do something meant to persuade. It then gives a practice activity identifying the author's purpose for 10 short text descriptions.