Managers use their abilities and knowledge, as well as their expert skills in decision making. Their purpose is effecting others through communication and leading others towards achieving set organizational goals. Managers at every level of management have to possess certain knowledge and skills in order to successfully perform their job. Except the importance of communication and communicational skills of a manager, for overall efficacy of an organization, the open communication for providing support i.e. cooperative communication is gaining importance. Communication skills turn out to be the most important competence while evaluating candidates for a certain job and the most critical factor of manager's efficacy. Communication skills are critical for a range of activities of a manager, like conflict and change management, advising and training, interviewing, developing good interpersonal relations etc. In modern bussiness, communication skills are not critical only for managers and leaders. They become a general assumption of efficacy and critical factor of success in most of the jobs. Communication skill is our most important competence which increases our chances of success in professional as well as in personal life. To know how to trade comprehensible, accurate, complete and timely informations and how to be persuasive in communication becomes a fact of critical importance.