Verbal and non-verbal communication are discussed. Verbal communication includes oral communication through spoken words and written communication through typed or written words. Non-verbal communication conveys messages without words through body language, appearance, touch, space, and visual methods. Effective communication requires feedback, which should be clear, timely, specific, and informative. Barriers like language differences, perceptions, and attitudes can interfere with understanding but can be overcome through active listening, simple language, and addressing physical and psychological barriers.