The purpose of a graph that professionally designs trademarks or logos is to provide, through an image, an effective visual message to identify a single product or a company. These designers first acquire the necessary information, typically provided by the client, so you can carry the brand as much as possible according to the required target, then move on to the actual design, taking into account specific criteria, such as the choice of a character adequate (lettering), colors, shapes etc.
The design methods are used to know and to identify the problem and, according to the data sought by the designer, lead to fulfill a series of choices that lead to a consistent solution.
The graphic designer must know and understand the social and cultural norms of the public to whom it is intended, in order to find the most effective and relevant visual solutions.
Must use the knowledge gained to optimally solve complex problems and challenges of visual communication: every designer should know how to identify and keep in mind the purpose of the message that the product is to communicate to the public, collect and analyze the necessary data pertaining to information and know how to create the potential for design methods that aim to solve the problem and make products as simple and functional as possible and doily on target (ie the communicative objective) expected.