This document discusses the seven C's of effective business communication: completeness, conciseness, consideration, concreteness, clarity, courtesy, and correctness. It provides definitions and examples for each principle. Completeness means including all necessary information for the receiver. Conciseness is expressing ideas using the fewest words possible. Consideration involves preparing messages with the receiver's perspective in mind. Concreteness requires using specific, definite language rather than vagueness. Clarity aims for precise meaning and understanding. Courtesy grows from respect and concern for others. Correctness encompasses proper grammar as well as factual accuracy. The seven C's provide guidelines for effective written and oral business messages.