This document discusses barriers to communication. It defines communication as the exchange of information through words, sounds, signs or behaviors. Barriers can interrupt or stop the communication process, resulting in failed or miscommunication. There are three main types of barriers: physical, psychological, and semantic. Physical barriers relate to environmental conditions like noise or defects that prevent the message from being sent or received clearly. Psychological barriers are created in the mind, such as emotions, prejudices, and selective perception. Semantic barriers occur due to different understandings of the meanings of words or symbols between the sender and receiver. Overcoming barriers is important for effective communication.