In order to discuss the general function of the logo, we must firstly identify and define the environment where this will have to fulfill its function. The environment is called brand and the definition is as follows: the brand is a collection of ideas and images, a collection that constitutes an undivided whole meant to transmit and sustain the values of a company, a product or a service. As you have noticed, this definition has brought into discussion two defining elements: idea and image. I’d like to emphasize that it is important to follow this order: ideas come first and images are born out of ideas to visually represent them.