What you need to know about spacing:

1. No spaces between letters in a word.

2. One space between words.

3. One space after ending punctuation, like a period or a question mark.

4. Single- or double-spaced line spacing.

5. One space after commas.

6. One space before a beginning quotation mark and one space after a closing quotation mark.

7. No space before, one space after semicolons, colons, and an ending parenthesis.

8. One space before, but no space after a beginning parenthesis.

9. No space before or after hyphens (unless the hyphen is a dangling hyphen) or em dashes.