There are four purposes of communication: to inform, to convey goodwill, to establish credibility and to persuade and influence. In the business world, you want yourself and your company to have good credibility. One way to establish credibility is by your expertise and competence. Knowing what you’re talking about helps build your credibility because you don’t have to make up anything or tip toe around questions when you are talking to someone. You are able to communicate better when you are an expert in the area.
