| A | B |
| Dateline | The current date of the document; keyed below the return address |
| Letter/Mailing/Inside Address | Address of the person receiving the letter. |
| Salutation | A greeting; "Dear Ms. Mercer" |
| Body | Message or paragraphs. |
| Complimentary Close | Farewell; "Sincerely" |
| Typist initials | Included if someone other than the author keys the letter. |
| Enclosure | Indicates something is included with the letter |
| Block style | All parts of the letter or memo begin at the left margin. |
| Open punctuation | There is no punctuation after the salutation and no punctuation after the complimentary close. |
| Mixed punctuation | There is a colon or comma after the salutation and a comma after the complimentary close. |
| Signature | This is why you quadruple space after the complimentary close |
| Letterhead Stationery | Consists of the business’ name, address, phone/fax/email, and logo. |
| Copy Notation | Used if a copy of the letter is sent to someone in addition to whom the letter is addressed. |
| Attachment Notation | An attachment notation would be used if something were stapled/paper clipped to the letter. |
| Enclosure Notation | Used if something were included in the envelope with the letter. |
| Double Space | Line spacing between the author’s keyed name and the typist initials. |
| Quadruple Space | Line spacing after the complimentary close and after the dateline. |
| Line spacing for the body | Single space within paragraphs and double space between paragraphs. |
| Return Address | Address of the person writing the letter. |
| Personal Business Letter | A letter from an individual to a business or another individual. |
| Business Letter | A letter from a business to a business or individual. |