The process of communication involves encoding and sending of a message by the sender and transmission of the same via a communication channel for being received by the receiver who is responsible for decoding and processing of the transmitted information and replying back via a communication channel.
- Verbal Communication: This can be further differentiated into oral and written communication. Oral communication lays emphasis on speaking words which are utilized for face-to-face, on-the-phone, voice chat or Internet communication. The effectiveness of these words depends upon pitch, speed, voice modulation, clarity and volume of speaking.
Written communication includes communication by email or snail mail. The writing style, grammar, language precision, grammar and vocabulary used are important facets of written communication. Pictorial representations, paintings, photographs, signboards, sketch and symbolic communication also falls under this category. Humans have used this for recording history through cave writing dating back to more than a million years.