Business communication involves the sharing of information between individuals and organizations for commercial benefit. It aims to exchange information, maintain coordination, achieve goals, and solve problems. The key components of the communication process are the sender, message, encoding, channel, receiver, decoding, and feedback. Barriers like physical, semantic, organizational, and psychological factors can interfere with effective communication. Different types of business communication include internal, external, formal, informal, vertical, horizontal, and diagonal communication as well as oral, written, and nonverbal forms. Following communication principles like completeness, conciseness, consideration, clarity, concreteness, courtesy, and correctness can help improve business communication. Business correspondence typically involves letters, memos, emails and reports