A resume (also known as a CV or curriculum vitae) is a summary of your strengths, responsibilities, work experience and qualifications. Its purpose is to snag you an interview, by proving to a prospective employer that you have what it takes to do the job – no more and no less! It’s a foot in the door to get you through to the interview stage.
A cover letter is an introductory letter which accompanies your resume when you apply for a job. It’s an opportunity for you to quickly and concisely present your “case” to your prospective employer as to why you should be hired.