The cover letter is more than a summary. You need to make a persuasive argument about your unique ability to contribute to the organization.Tell why you are writing the letter. State that you are applying for a specific position and indicate how you found out about the job. Make sure to mention the position you're applying for. Writing a Cover Letter. The opening paragraph should state why you have sent your materials. What is the Basic Format? BASIC GUIDELINES FOR YOUR COVER LETTER: One page. Use the following samples to help write your own resume content.