| A | B |
|---|
| . | Space twice after a period at the end of a sentence. Space once after a period at the end of an abbreviation. |
| ? | Space twice after a question mark that ends a sentences. Space once after a question mark within a sentence. |
| ! | Space twice after an exclamation point that end a sentence. Space once after an exclamation point within a sentence. |
| : | Space twice after a colon. Don not leave a space before or after a colon in the expression of time or in a ratio. |
| , | Space once after a coma. |
| ; | Space once after a semicolon. |
| " | No space between opening quotation marks and the first word of the quoted material. Space once after the closing marks if they are not at the end of a sentence. |
| - - | When using two hyphens to indicate a dash, do not space before, between, or after the hyphens. When a single hyphen is used as a dash, space once before and once after it. |
| - | NO space before or after the hyphen. |
| ' | No space before or after an apostrophe. |
| ( ) | Space once before typing the opening parenthesis and once after typing the closing parenthesis, but do not space between the parentheses and the words they enclose. |
| & | One space before and after the ampersand. |
| # | Do not space between the number sign and the number it identifies. |
| $ | Do not space between the dollar sign and the number it identifies. |
| % | No space between the percent sign and the number it identifies |
| * | Often used to refer to a footnote. Do not space between the asterisk and the word that precedes it. |
| @ | One space before and after the “at” sign. |
| / | When used to express a fraction, do not space between the numbers of the fraction and the diagonal. |
