Cover letters are a hot topic these days. Some say they are worthless; others say they are priceless. A recent study by Zip Recruiter indicates that 50% of hiring managers require a cover letter, and that of those, two thirds of them reject an applicant because of something included in the cover letter.

Based on that stat, I’d say learning to write a good cover letter is a skill that a job seeker needs. Unfortunately, there’s a lot of bad advice out there about writing cover letters. Most of it stems from experts with outdated notions about what a cover letter’s real purpose is. Here are three myths about cover letters you shouldn’t believe.