The document provides guidance on writing effective cover letters. It explains that cover letters are used to market candidates for jobs and internships, and should demonstrate how the candidate specifically fits the position and organization. The summary also notes that cover letters must be tailored to each application and should highlight relevant skills and experiences to motivate the employer to review the resume and invite the candidate for an interview. Finally, the summary provides formatting tips such as using the same resume paper/font and proofreading for errors.