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This part of the Appendix contains advice on editing your documents for grammar, punctuation, and mechanics. If your organization or professional field has a style guide with different recommendations about grammar and usage, you should of course follow those guidelines.
Your instructor might use the following abbreviations to refer you to specific topics in the text and in this part of the Appendix.
| Abbreviation | Topic | Abbreviation | Topic |
| abbr | abbreviation | . | period |
| adj | adjective | ! | exclamation point |
| agr p/a | pronoun-antecedent agreement | ? | question mark |
| agr s/v | subject-verb agreement | , | comma |
| cap | capitalization | ; | semicolon |
| comp | comparison of items | : | colon |
| cs | comma splice | — | dash |
| frag | sentence fragment | ( ) | parentheses |
| ital | italics (underlining) | - | hyphen |
| num | number | ’ | apostrophe |
| ref | ambiguous pronoun reference | . . . | ellipses |
| run | run-on sentence | < > | angle brackets |
| t | verb tense | [ ] | square brackets |