The subject of this final paper are forms of business communication. Communication is present all around people 's lives, in business, so as in private. It is necessary in communicating in all business organisations. It can be positive, but also negative, what is reflected on the organisation itself, and it ' performance, so as interpersonal relations inside the organisation. It has a great effect on whole business and financial result on the whole organisation, from the lowest, to the highest levels, respectively management. The goal of business communication is to speed up processes on all levels of business organisation, connecting people, creating cohesion and synergy between people. The most important forms of business communication are: 1) verbal business communication at which, as an example are named conversation and business report, 2) Non verbal business communication which is used as a supplement for verbal communication, 3) Formal business communication that can be horizontal and vertical, 4) Informal business communication which is based on personal contacts and doesn’t have strict structure, 5) Electronic business communication which is being pointed out as the last form of business communication. Each one of the above listed forms can be intertwined and it is often the case that in one organisation are being used mixes of all forms of business communication. The final paper is divided into three main parts. In first part communication is described in general, it’s development and elements which of the communication process is made of. Then in the second part the focus is on business communication as a part of business processes in organisations and also the importance and contribution of business communication. In the last, third part of final papper it is being talked about forms of business communication. Forms of business communicatio are listed and described, so as it’s effect on relations between the people in organisation.