The title of this paper is „The Techniques and Importance of Oral and Written Communication in an Office“. The main theme of this paper is communication. Communication is the basis of each contact, each activity and every business. Communication is so incorporated in business because of one simple reason, and that is that without communication one cannot imagine performing any kind of work, especially not the work which is based on communication, and that is exactly what the office work is. One could say that people in an office use all kinds of communication, from verbal to nonverbal, and all their forms. Such communication is used both in formal and informal situations in an office. It is exactly this mutual correlation between all kinds of communication in one office that indicates the importance of communication in office work. An employer who has a person who handles the communication skills in an appropriate and good way is certainly a satisfied employer because a good communicator does the work more easily and, finally, deals with the aims of the organisation in a quick and an efficient way. With the development of information technology, an electronic form of communication developed especially in the office work which also requires special training and knowledge in order to work with it. This form of communication has made the communication easier and quicker, and thereby has also made the office work easier. We can easily draw a conclusion from all of this that no organisations could exist without communication. An efficient communication is the basis for the development of an internal organisation and internal operations.