Knowing the rules of behavior is extremely important in every segment of our life. From a young age until the end of life, we learn to behave properly and respect other people in order to contribute to the positive environment in which we find ourselves. The basic rules of behavior go back to the distant past, because already in the era before Christ, there was an effort to apply the rules of how to behave towards others and how to behave in one's home. In this paper, we looked at the basics of communication and briefly clarified its basic types. It has been observed that with the change in society, the rules of communication in business also change. Thus, some well-established rules of behavior in communication that are applied in one culture are subject to change as business expands to countries that have a completely different mentality. And for successful business, it is necessary to adapt. Also, the use of technology is increasingly present in business and replaces traditional components of business communication. Communication is an important part of creating and maintaining business relationships, because how we present ourselves to business partners depends on knowing how to communicate. How to write a letter, conduct a telephone conversation and what is polite and what is not in communication with parties is of great importance for an individual company because it represents the identity and image of the company. The importance of knowing etiquette in the business world enables business partners to conclude a legal deal as efficiently and in a good tone as possible. It is important to know how to introduce yourself, how to shake hands when getting to know each other, how to behave in business meetings and how to dress for a meeting. Examples from individual countries show how different the rules of behavior are in different cultures. It is important to prepare and research the customs and rules of conduct of the country with which business cooperation is planned, because it often depends on whether or not there will be a business agreement.