Effective communication is critical for business success and involves transmitting a message from a sender to a receiver through a process. The communication process includes encoding, transmitting through a medium, decoding, and feedback. It begins with the sender encoding an idea and selecting an appropriate channel to transmit the message to the receiver for decoding. Feedback from the receiver allows the sender to evaluate how well the message was understood and make corrections if needed. Following the communication process helps ensure the message is understood as intended.