A cover letter is a document sent with a job application to introduce the applicant and highlight their qualifications. It typically accompanies a resume and provides an opportunity to explain why the applicant is a good fit for the position. Cover letters allow candidates to showcase their personality and enthusiasm for the role. In a cover letter, applicants should address the hiring manager, mention the specific job they are applying for, and briefly outline their relevant skills and experiences. A well-written cover letter can make a positive impression and increase the chances of securing an interview.