The document provides guidance on writing effective cover letters. It explains that a cover letter introduces yourself, highlights your relevant skills and experience for the position, and expresses your interest in the company. The document outlines the typical structure of a cover letter, including an introductory paragraph, one or more selling paragraphs that match your qualifications to the job requirements, and a closing paragraph requesting an interview. It also provides tips, such as keeping the letter concise, customizing it for each application, using the company's language and terminology, and proofreading for errors.