The document categorizes and describes various barriers to effective communication. It identifies semantic, organizational, inter-personal, individual, cross-cultural, physical/technological barriers. Semantic barriers include similar pronunciations with multiple meanings and technical jargon. Organizational barriers involve status differences and incompatible expectations. Inter-personal barriers arise from differences in status, lack of trust between subordinates and superiors, and poor social relationships. Individual barriers include selective perception, inattention, and defensiveness. Cross-cultural barriers relate to differences in language, values, and non-verbal communication. Technological barriers involve lack of knowledge and noise. The document suggests overcoming barriers by fostering relationships, coordination, clarity, feedback,