PARENTHESE
Parentheses and dashes serve many of the same functions, but they differ in one significant respect: parentheses can set off only nonessential elements, where as dashes can set off essential and nonessential elements.
Remember:
In setting off elements, dashes emphasize; parentheses de-emphasize.
Example:
n three of our factories (Atlántico, Bolívar, Magdalena) sales have gone up. Sales have gone down in our Cali (Valle) office.

Note:
Letters are used to enumerate items within a sentence when the sentence itself is part of a numbered sequence.
Example:
3. Please include these items on your expense account (a) the cost of your hotel room; (b) the cost of meals, including tips; and (c) the amount you spent on transportation

THE UNDERSCORE.
Underscoring in typewritten material is the counterpart of italic type in printed material.
Example:
The word quay is pronounced exactly the same as key. The word quay is pronounced exactly the same as key

THE ASTERISK.
The asterisk may be used to refer the reader to a footnote placed at the bottom of a page or table.

Example:
Mr. Sheldon sent Mr. Page a copy of his latest novel* with a note.

THE APOSTROPHE.
The apostrophe is used:
*As a single quotation mark: for example;“ Don’ t you remember when he said ‘ I will not go.’ yesterday?”
*To indicate the omission of figures in dates. for example; The class of ’ 97 The winter of ’ 87

LLIPSIS MARKS.
Ellipsis marks (three spaced periods, with one typewriter space before and after each period) are often used, especially in advertising, to display individual items or to connect a series of loosely related phrases.

Example:

Sandals Resorts - All-Inclusive Luxury in the Caribbean - ON SALE

Are you lacking a little "R&R" ... Romance & Relaxation? Do you crave a little white sand under your toes ... floating on turquoise water with a cool drink in your hand ... pampering without a worry?

Check out these specials at Sandals Resorts ... the ultimate Ultra All-Inclusive Caribbean romantic resorts for couples only ... Loveis all you need at Sandals. Better hurry ... limited time offer!

Where can you get these services?

. . . Free ticket delivery
. . . Flight insurance
. . . On-time departures

QUOTATION MARKS.
Quotation marks have three main functions: to indicate the use of someone else’s exact words:

Example
“ If you want to lose weight, don’ t eat sweets,” said Gloria.

To set off words and phrases for special emphasis.

Example:
*The carton was marked “ Fragile.”
*She received a message signed “ A Friend.”

THE DIAGONAL.
The diagonal occurs (without space before or after) in certain abbreviations and expressions of time.