The Period, Question Mark, and Exclamation Point

Punctuation makes a text clear. It tells us when to pause, indicates questions, links ideas, and adds expression. Some people have different preferences when it comes to punctuation, so always follow your boss’s preference. If he or she instructs you to insert more commas or semicolons than today’s magazines and newspapers typically use, then follow your organization's preferred style. However, if a matter is left to your discretion, remember that the old tried-and-true comma rule also applies for many other marks of punctuation: “When in doubt, leave it out.”