Effective communication is based on clarity, brevity, active listening, and understanding the audience's perspective.

Improvement can be achieved through practice, seeking feedback, enhancing vocabulary, and being aware of non-verbal cues.

Barriers include language differences, emotional influences, physical distractions, and assumptions or misunderstandings.

Strategies involve clarifying messages, confirming understanding, reducing background noise, and adapting communication styles.

Non-verbal cues like body language, facial expressions, and gestures often convey more information than words and significantly impact message interpretation.