This PowerPoint introduces why authors write and explains the 3 main reasons: persuade, inform, entertain. Examples of each are given with blurbs of texts and also with covers of books. There is a cooperative learning activity where partners have to decided the author's purpose and explain their thinking. Answers are animated and pop up for instant feedback after each question. The end summarizes how knowing the author's purpose for writing will help you as a reader. There is also a website included for more online interactive practice. Enjoy!