The document defines communication as the process of passing information from one person to another, and identifies its key elements. Communication involves a sender transmitting a message through a channel to a receiver. The receiver then provides feedback to the sender. Effective communication depends on selecting an appropriate channel and ensuring the receiver can understand the message as intended. Key aspects of the process include creating clear messages, choosing channels that don't distort the message, ensuring common language between participants, and receiving feedback to complete the interaction.