Communication is the process of sending and receiving information without distortion. Effective communication is an art that involves soft speaking, positive language, logical thinking, and confident body language. The 7Cs make communication more effective, understandable, and responsive by promoting completeness, conciseness, consideration, concreteness, clarity, courtesy, and correctness. These principles involve considering the audience, using clear and concise language, being polite, and providing complete and accurate information to improve understanding.