A simple trick to summarize the three main categories of author’s purpose is to use the acronym PIE, which stands for persuade, inform and entertain. Although there are many reasons to write, to persuade, to inform and to entertain represent the three main forms of author’s purpose.Click to see full answer. Considering this, what are the 4 types of author’s purpose?There are four main types of writing: expository, persuasive, narrative, and descriptive. Expository – Writing in which author’s purpose is to inform or explain the subject to the reader. Persuasive – Writing that states the opinion of the writer and attempts to influence the reader.Furthermore, how do you write an author’s purpose? Persuade: the author’s purpose is to persuade the reader to consider his or her perspective on a specific topic. The author will present opinions, evaluative statements, as well as facts and statistics to support their argument. Inform: the author’s purpose is to inform the reader about a specific topic. In respect to this, what are some examples of author’s purpose? Author’s Purpose: To Persuade It’s the author’s goal to persuade the reader to agree with the author’s opinion. Even though the author shares his opinion, he may provide facts or examples to support the opinion. Examples: advertisements, commercials, newspaper editorials, etc.Can writing be taught?A writing school cannot begin to guarantee that a single one of its alumni will ever write anything that anyone would read with pleasure. Writing can be learned but it can’t be taught. And talent can’t even be learned. It can be developed, but only if it’s there.