A cover letter is a one-page document addressed to a recruiter which includes vital information about you such as your contact details, the job position you are applying for and further details regarding your CV. It is traditionally attached to a resume or CV, and should be tailored according to the situation at hand. Cover letters should be written in a tone that is direct, unassuming, and conveys enthusiasm.
First impression is the last impression. Your cover letter is your initial opportunity to engage a prospective employer. Thus, it should align your qualifications, relevant skills and previous experience clearly to the job description to emphasize that you have done your research into the role and are keen to join the team.