Communication involves the transmission of information from a sender to a receiver. There are various components in the communication process including the sender, message, channel, medium, receiver, and feedback. Communication can be one-way, with information flowing from the sender to receiver only, or two-way, allowing feedback from the receiver to the sender. Channels of communication in organizations include vertical communication up and down the hierarchy and lateral communication between peers. Common communication media are written, oral, and electronic forms.