A resume can be seen as your one-page interview. Think of it as an audition before you are given a part in a production. In this audition, you have to show that you are able to do the things that the director wants you to do. Well in the case of your Job search, you resume will be that audition. It is a chance for you to showcase all those things that you feel the employer would be most concerned about. The employer has a job description which details the things a candidate must possess to qualify. You should use your resume to show that you meet all of those criteria and are the best candidate for the job.