The document provides guidance on how to write an effective cover letter. It explains that a cover letter introduces your CV and highlights relevant skills and experience to answer why an employer should hire you. The summary includes the key elements of a cover letter such as a rigid structure with four paragraphs addressing why you are applying, matching qualifications to the job, your interest in the position, and requesting an interview. Finally, it notes a cover letter should be short at 200-250 words and accompany your CV when applying for a job.