A logotype is a graphic figure, typographic expression or both at the same time, that it's used to account for a movement, institution or company. Commercially, the use of a logo indicates that the public quickly recognize a certain company, a fact of enormous importance that accounts for the prestige of this. This makes advertising has an extended use of these, so to be reproduced in different media, must be distinguished easily and should generate an impact that impedes their forgetfulness.