| A | B |
| Letterhead | Preprinted at the top of the Stationary eliminates the need to type the Return address |
| Dateline | Spell this out , such as April 30, 2010, NOT 4-30-2010 |
| Inside Address | Name & address of the recipient of the letter |
| Salutation | Greeting, such as "Dear Mr. Smith:" |
| Message | This should be single spaced with double spacing between paragraphs |
| Complimentary Closing | Says goodbye; often "Sincerely" in a business letter |
| Signature Block | Writer of the letter name and title |
| Reference Initials | The initials of the typist of the letter and sometimes the author as well (bc/mw) |
| Enclosure Notation (Optional) | Says another document is included in the evelope |
| Mixed Punctuation | A , or : is used after the salutation and a , is used after the close |
| Open punctuation | No : or , after salutation or complimentary close |
| Block style format | All lines begin at left margin |
| Modified block style format | Date, Close and Signature Block are indented to the center of the page |
| Quadruple Space | After the date and after the Complimentary Close |
| Personal Business Letter | Sent by an individual to a business |
| Top Margin | 2" |
| Business Letter | A formal letter sent from a business to one or more parties |
| Company Signature | The name of the company in all caps, placed a double space below the complimentary close |
| Copy Notation | Indicates the names of other parties who have received copies of the letter. Example: cc Mrs. Dian Moon |
| Double Space | After the inside address, after the salutation, and before the close |