A cover letter lets you tell your employment story with some freedom to express yourself. You can explain your qualifications more fully.A cover letter introduces you to potential employers, highlights your qualifications, and explains why you're a good fit for the position. Save your cover letter to a PDF to avoid formatting issues. Connect the Dots between your goals and the organization to which you are applying;. Be Customized to demonstrate why you are a good fit for the specific. Always write a cover letter from scratch. Start over include three themes: what you know about the company, what you admire about the company and why you're the right person to fill the open room. State which position you are applying for and where you found the opening. Give information that shows your interest in the company and why you are writing.