Answered by Ashlyn, Hiring Expert at Worthington Industries, on Monday, May 22, 2017
This is a question that we hear a lot, coming from both hiring managers and applicants, on whether or not to submit/review a cover letter. We recommend that you should submit a cover letter if the employer specifically asks for it, if you are applying to a position that written communication is used frequently and seen by public (marketing, communications, advertising, legal, etc.), or if you are making a career change. Cover letters are often expected for folks applying to high level positions, as well. It doesn't hurt to send in a cover letter if you've got one prepared, but if a company doesn't ask specifically I would save your time. If you do submit a cover letter, be sure to discuss the company, it's values, and how you would be a good fit for the organization and how you can contribute to the overall goal.
Best of luck!