Suppose you want to make an announcement, you offer a service or product, you want to inform, explain, or even entertain, or demonstrate any process. In other words, you have a message you want to communicate worldwide with relevance. How would you do? You could tell by word of mouth to different people, make an announcement on the radio or why not shout in the street with a megaphone. This way you would be doing oral communication.
But if you use a visual support, such as a letter, poster, flyer, logo for an organization or a business, an ad in a magazine or newspaper, or a web site, then, as a matter of fact, you would be making visual communication. In other words, that's where the know-how of laguineu comes into action to reach your goals in a timely manner with results that meet your expectations.