Here's a simple communication tip. Whenever you use an acronym in your writing, always spell it out on first reference. Why? If you start off with an abbreviation, for instance, the FDA...you assume the reader knows what FDA means. And the first rule of strong communication...never assume the reader know anything. That means would spell out FDA, as in, the Food and Drug Administration. And from then on, you can use FDA...now that the reader knows what the letters mean. A little clarity goes a long way.