Cover letters are not one-size-fits-all. To increase your chances of getting called back for an interview, you must submit a unique cover letter tailored specifically for the position you are applying using keywords from the job listing. Your resume makeover + cover letter package included one cover letter written for a job of your choosing, but if you will be applying to many positions (I’m certain you are!), your application package will be much stronger with a tailored cover letter accompanying each resume. Tailored and specific cover letters show the employer that you put in that extra effort — and many times, that alone will get you the callback.