„It is not so difficult to understand the star universe as it is to understand the behavior of other people". - Marcel Proust Communication constitutes an information exchange process through an agreed character system. The organisation represents the means by which the organisation achieves the objectives, where objectives and employees play a key role. When there is no communication, there is no organization. Every human word, movement, touch, gesture all represents communication. Even the smallest human act is considered communication. "Non-communication" is also considered communication. We are socialized through the communication process. In order for the internal organization to be as successful as possible, effective communication is most important, but it is also a key factor in an uncertain environment. The manager must have good communication, as well as every employee, in order for the organizational system to function as well as possible. When it comes to the organization, business communication takes place inside the organization, but also outside it. In order to make communication in the organization as successful as possible, it is important to know the language, to conduct interaction exercises, to have knowledge about the culture of all participants participating in the communication. Communication is very important. We get to know ourselves and our roles in society through communication, we learn about others, and the result is organizing into different groups.