This document discusses various barriers to communication. It identifies 5 main categories of communication barriers: 1) Language and semantic barriers caused by a lack of common language, poor vocabulary or grammar, and ambiguous word choices. 2) Organizational barriers such as rigid rules, hierarchical structures, specialized workforces, and lack of staff meetings. 3) Physical barriers including noise, timing, distance, gender, and age differences. 4) Socio-psychological barriers arising from status differences, attitudes, values, perceptions, stereotypes, projection and past experiences. 5) Additional barriers include poor listening skills, emotions, egotism, filtering of information, and close-mindedness. Overcoming these barriers is important for effective communication.