Not everyone in the business world studied English in college. In fact, I think it's safe to assume most didn't. Unless you're a writer, editor, or just have a random passion for grammar, it's likely that once you slogged your way through Macbeth and To Kill a Mockingbird (or at least watched the movie versions or skimmed the Sparknotes), you felt free. Because of this, the professional world is rife with grammatical errors, misspellings, and other things that make English teachers' brains twitch.

And guess what? That's okay! You don't have to be a flawless writer if you're a graphic designer, a video editor, or an accountant. No one is expecting you to be perfect, but there are some fairly common mistakes that are easy to avoid. It might be helpful to have a brief refresher course of some basic writing rules that trip people up, starting with some homophones