Communication is the process of transmitting and receiving messages between a sender and receiver. It involves sharing of thoughts, ideas, and emotions. The sender formulates a message and encodes it to transmit through a medium to the receiver, who decodes it. There are various modes of communication like speaking-listening, writing-reading, visualizing-observing, and doing-learning. The communication process can be affected by factors related to the sender, receiver, atmosphere, and message, as well as psychological, physical, language, background, and organizational barriers.