Each viewpoint essay starts with an Article Commentary that includes information about the essay's author(s), position summary, main points, and questions to consider. Having this information at the start, sets you up to be a critical thinker. It's important to know the credentials of the author, their expertise, and potential biases in order to assess their credibility and understand why they take the perspective that they do. The brief position summary and questions to consider offer you a preview and help to focus your thinking as you read the essay.