When we talk to someone face-to-face, we know just who we are talking to. We automatically adjust our speech to be sure we are communicating our message. Many writers don't make those same adjustments when they write to different audiences, usually because they don't take the time to think about who will be reading what they write. To be sure that we communicate clearly in writing, we need to adjust our message--how we say to and what information we include--by recognizing that different readers can best understand different messages.
