Think of a resume as “self-advertisement” that sums up your experience on one page. Your resume is one of the most important pieces of your job application. It gives the hiring manager an overview of the qualifications you have for the job for which you’re applying. You should also familiarize yourself with the difference between a resume and a cover letter.
Also be sure to include your city, state or zip code in your contact info, since employers will sometimes search Applicant Tracking Systems with these criteria. It’s also important for ATS to have this information at the top of your page, otherwise it may not be parsed into your candidate profile, making it harder for HR to find or remember your resume.