Your resume is your personal advertisement of YOU. It should tell a potential employer about all the important skills and experience you have to offer to their company. A well-written resume will definitely increase your chances for that all-important interview.
The cover letter is your introduction to the potential employer. It should be written in a manner that will peak the employer’s interest in getting to know the person behind the resume and summarize the most important areas you can offer in the position for which you are applying.
Choose a position in a company that fits with one of your chosen career paths and write your cover letter as if you were actually applying for that position. These should be two separate documents because your resume should be a tool that can be used multiple times, but your cover letter should be written to address the specific position for which you are applying each time. Each position will list specific qualifications that should be addressed in your cover letter.