The purpose of a cover letter is to make a compelling case for yourself as a candidate for a particular job, and it complements what's in your resume. Your opening paragraph should state who you are, what specific position you are applying for, and why you are applying.Indicates your interest in obtaining an interview. The Structure of the Cover Letter: Using a business letter format, your cover letter will include:. Choose a few phrases in the opening paragraph that let your reader know what to expect in the body of the letter. Your cover letter should be viewed as a miniwriting sample. The 1st paragraph is the opening, where you identify the purpose of the letter. • Spacing is an important aspect of any business letter- pay attention to the spacing guidelines on the samples provided. I would like to be considered for the summer law clerk position you recently posted at South Texas. College of Law Houston.