Closing: When you're writing a business letter or email message it's important to close your letter in a professional manner, so you're letter, in its entirety, is well_written and professional. Signature: When you are sending a paper letter, finish the letter with your signature, handwritten, followed by your typed name. If this is an email, simply include your typed name. Finally, don't forget to spell check and proofread your letter before you send it. Again, ask a family member, friend or colleague to review it for you. It's always good for another pair of eyes to take a look because it's hard to catch our own mistakes.
Font Size: The traditional font size for a professional letter is 12. The font should be Times New Roman or Arial. However, if you are using letterhead, the letterhead may be in different font size and style. Font Style: There is no need to use different styles within a professional letter. Use a uniform font (book print font such as Times New Roman or Arial) and avoid underlining, italicizing, or bolding. However, if you are using letterhead, the letterhead may be in a different font style.