There are 7 main types of non-verbal communication known by the acronym KOPPACT: Kinesics (body language), Occulesics (eye contact), Proxemics (personal space), Paralanguage (voice tone), Artifactics (appearance), Chronemics (time management), and Haptics (touch). Non-verbal communication makes up over 50% of total communication and helps express messages, establish engagement, and communicate feelings beyond words. The document discusses each type of non-verbal communication.