You’re a skilled freelancer. You’re at the top of your game, and you know you could do a great job for any prospective client. But they don’t know who you are. They don’t know the caliber of your work and, in fact, yours is just one of many proposals they’ve received for their next project.
If you want your proposal to stand out, grab their attention, and get the contract, it helps to know how you can optimize your best shot: your cover letter.