What is a Cover Letter?
TL;DR: A cover letter is a one-page document sent with your resume that explains why you're a strong fit for a specific role. Unlike a resume (which lists qualifications), a cover letter tells the story of how your experience connects to the job.
An effective cover letter has four parts: hook (why this company), fit (how your experience matches), evidence (specific achievements), and close (call to action). It should be customized for each application.