Content, form, and destination of human communication
Communication is usually described along three major dimensions: content, form, and destination. Examples of communication content include acts that declare knowledge and experiences, give advice and commands, and ask questions. These acts may take many forms, including gestures (nonverbal communication, sign language and body language), writing, or verbalspeaking. The form depends on the symbol systems used. Together, communication content and form make messages that are sent towards a destination. The target can be oneself, another person (in interpersonal communication), or another entity (such as a corporation or group).
There are many theories of communication, and a commonly held assumption is that communication must be directed towards another person or entity. This essentially ignores intrapersonal communication (note intra-, not inter-) via diaries or self-talk.