Your words should do more than restate salient details from your resume.
Check out this brief checklist of important functions of a cover letter: Don’t use a one-size-fits-all cover letter template for all the positions you apply for.
During the writing process, review qualifications such as the type of degree required, the number of years' experience needed, specified software skills, organization and communication abilities, and project management background.
The cover letter also is a place to preemptively explain anything that might give a hiring manager pause, such as a gap in employment.
What are they asking for that you’re especially good at?
Those are the points to stress in the cover letter.
Just as important, gather facts and figures that support your claims.
For example, if you're applying for a managerial role, mention the size of teams and budgets you’ve managed.
If it’s a sales role, describe specific sales goals you've achieved.
In addition to highlighting your talents, you can further personalize your cover letter by demonstrating your familiarity with the specific industry, employer and type of position.