While cover letters may not carry the importance they once did, those making hiring decisions still rely on cover letters to size up candidates and determine who might be worth calling in for an interview. You can probably boil your full-page cover letter down to a single paragraph or two, without rehashing your resume according to Emily Liou.
Source: Fast Company, May 23, 2018. Link. “Your resume is going to be reviewed first,” Liou says. “If the recruiter sees potential in your background, then they will read your cover letter.” Write your cover letter based on the premise that the reader is already familiar with the general outlines of your career trajectory.