Successfully written cover letters consist of an outline, a draft and then a final review. It is important that you give each step in the process attention.The writing sample should be 20 to 30 pages for PhD programs, or 15 to 20 pages for MA programs, excluding bibliography or appendices. Career Services typically recommends a one-page, three-paragraph cover letter. Chicago doesn't require a specific font or font size, but recommends using something simple and readable (eg, 12 pt. Learn how to structure your college application essay, including margins, paragraphs, and headers. College essay formatting examples. This guide provides an overview of the key components of a cover letter. Learn how to structure your college application essay, including margins, paragraphs, and headers. College essay formatting examples.