| A | B |
|---|
| Top margin | 2" |
| Side margins | 1"-1.25" |
| Bottom margin | At least 1" |
| Begins with sender's address | Personal Business Letter |
| Begins with date | Business Letter |
| Space between sender's address and date on PBL | SS |
| SS | Single space |
| DS | Double space |
| QS | Quad Space |
| Space between Greeting and body | DS |
| SS | Tap the Enter key 1 time |
| DS | Tap the Enter key 2 times |
| QS | Tap the Enter key 4 times |
| On PBL, space between Date and Recipient Address | QS |
| On BL, space between Date and Recipient Address | QS |
| Open Punctuation | No punctuation after Greeting and Close |
| Mixed Punctuation | : after greeting and , after Close |
| Space between paragraphs | DS |
| Spacing within paragraphs | SS |
| Space between Body and Complimentary Close | DS |
| Space between Close and Sender's name | QS |
| Space between Greeting and Body | DS |
| Align all parts on the left margin | Block Format |
| Address in all caps with no punctuation, except in zip code | USPS Format |
