A cover letter is a crucial document sent alongside your resume when applying for a job. It serves as an introduction to the employer, highlighting your qualifications, skills, and why you're the ideal candidate for the position. Acting as a personalized sales pitch, it goes beyond the resume's patterned information by expressing your interests, personality, achievements, and aspirations. Whether sent via email or as a hard copy, a well-crafted cover letter adds value to your application, helping employers better understand your fit for the role and your genuine interest in the job opportunity.