Communication is the basic and most important part of culture, since ancient history people have improved themselves and the civilization through communication, communication as a main element of interpersonal relations presents the most important element for improvement and prosperity. Every culture has its own way of communication, verbal and nonverbal, and regarding the fact that in international business people meet with many strangers from different cultures, means that they must leatn to accept and adapt to these cultures. Open mind towards accepting differences leads to prosperous and healthy business. But along with respecting differences in international business, differences should be respected inside the organization as well. Different managers have different ways of handling relationships with their colleagues, some are verbal, and some nonverbal types. But also they must learn to respect time and space of their colleagues and separate formal from unformal. Managers should also learn to lead their team towards success, as well as business meetings, in which the future of the organization is decided. In this paper a wide variety of terms will be defines, such as culture, ethnocentrism, xenophobia, all the way to obstacles in modern business communication, with the goal of better understanding the impact communication has on our culture.