This document defines communication skills as the ability to use language receptively and expressively exchange information. It discusses types of communication based on organization relationships and flow. Barriers to communication include semantic issues, emotional/psychological factors, organizational policies, and personal attitudes. Effective communication is two-way, involves active listening and feedback, and is clear, concise, complete, concrete, courteous, and correct. Good communication skills are important for professional advancement, resolving conflicts, building relationships, and improving productivity.