This document discusses the nature and types of communication. It defines communication as the process of exchanging ideas, thoughts, feelings and emotions between people using verbal and non-verbal symbols to achieve understanding. The key elements of communication are identified as the sender, receiver, message, channel, noise, context and feedback. It also outlines the encoding, transmission, receiving, decoding and responding process of oral communication. Finally, it describes the different types of communication including intrapersonal, interpersonal, public, mass communication and technology-mediated communication.