Verbal communication involves the use of spoken or written words to convey messages. It includes face-to-face conversations, lectures, presentations, and written correspondence.
Non-verbal communication refers to the transmission of messages without words. It includes body language, gestures, facial expressions, posture, eye contact, and tone of voice.
Barriers such as poor listening skills, cultural differences, emotional disturbances, and language problems can affect both verbal and non-verbal communication.