Improve Your Communication Skills & Body Language Discover the key aspects of verbal communication, non-verbal communication and listening in this online DIPLOMA. Communication skills are a key component of an individual’s personal and professional life. This online communications skills DIPLOMA will help you become an effective communicator by teaching you the many aspects of communication such as speaking, writing ,self-talk, tonality of voice, how to listen effectively, and the various fundamentals that play a part in body language which includes gestures, posture, expressions and flow.