This document discusses effective communication. It begins by stating that the quality of one's life depends on the quality of their communication with themselves and others. It then discusses various aspects of communication including what communication is, why it is important, models of communication, barriers to effective communication, and types of communication. The key barriers mentioned are sincerity, empathy, self-perception, role perception, efforts to distort messages, images, vehicles used for messages, listening ability, culture, tradition, conditioning, noise, and improperly given feedback. Overall, the document provides an overview of communication and highlights several factors that can impede effective communication.