Business communication, like any other, needs regulation. The etiquette of business communication is a set of open and unspoken rules for those who have to work together every weekday. Without regulated norms, business communication becomes a messy exchange of information. Each person in his own way perceives the surrounding world, his colleagues, leaders and subordinates. To a different worldview did not interfere with the work and did not make everyone speak different languages, it is important to observe the etiquette and culture of business communication. This applies both to relationships within one collective and to external contacts.