This article focus to why Interpersonal Communication is important key to success. Interpersonal communication is an exchange of information between some people. Related skills are learned and can be developed. During interpersonal communication there exists message sending and concept receiving. Effective leaders use interpersonal communication to encourage others. Successful managers use the interpersonal communication skills to produce their employees feel greater about their capabilities and also about themselves. They make their employees feel like they are part with their team and that what each employee does makes a difference.