The document outlines the seven Cs of effective communication: completeness, conciseness, clarity, correctness, consideration, courtesy, and concreteness. It provides guidelines for each C, such as ensuring messages are complete with all necessary facts, brief without sacrificing quality, easy to understand, accurate, considerate of the recipient's perspective, polite in tone, and specific rather than vague. Following these principles helps transmit effective written and oral messages adapted to the purpose and needs of the intended audience.