This document discusses communication, including its definition, elements, and barriers. It defines communication as the process of sending and receiving information between two or more people. The main elements are the sender, who encodes the message, and the receiver, who decodes it. There are four types of barriers that can disrupt communication: process, physical, semantic, and psychosocial. Effective communication is a two-way process that requires effort from both the sender and receiver through skills like active listening. The document provides suggestions for improving communication, such as clarifying roles, writing clear emails, conducting organized meetings, and addressing cultural differences.