Not only does this mean that you should focus on neutrality in your letter’s appearance (avoiding the use of colorful paper, brash logo designs, and artistic fonts), but it also means that you should employ a very low_key, unnuanced, and professional closing phrase. The best_case scenario is that the hiring manager, colleague, or connection won't even notice the closing.
Tips and Tricks for Better Letters: Following the proper formatting is only the first part of writing a letter that gets action. The content of a poorly formatted letter is unlikely to be read _ in one study of HR personnel, more than 80% said they’d throw out a resume if there were only one or two errors in the cover letter _ but even a well_formed letter is unlikely to be acted on unless the content is powerful and engaging. Once you have their attention, you need to create interest in whatever you’re offering. Promise to solve their problems _ with a great product, with your services, with a partnership, with whatever it is you’re writing about.