Highlight your top two relevant job skills without bragging. Save your cover letter to a PDF to avoid formatting issues.The goal of a cover letter is to sell the employer on how your skills and experiences make you the best candidate for the job. I'm deeply interested in a diverse group of topics including design, health, and advertising. I'm going to share with you the three part structure to create a bulletproof cover letter that gets you more interviews. Purpose. The purpose of a cover letter is to give a prospective employer additional information regarding why you are interested in. Explain your past positions, experiences, and skill set. But, be careful because the second paragraph should not be a reiteration of what is on your resume. 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.