Communication skills involve the ability to use and understand language through both receptive and expressive means. Effective communication is critical for career and personal success. There are various goals and methods of communication, as well as barriers that can interfere with understanding like semantic issues, emotions, and a failure to properly listen. Communication involves verbal, paraverbal, and nonverbal messages, with nonverbal cues being especially important for conveying emotions. Strong listening skills are also essential for receiving messages.