This document provides information about non-verbal communication. It defines non-verbal communication as communication without words that is spontaneous and complementary to speech. In business, approximately 52% of communication is through visual means like body language and facial expressions. The document then outlines four categories of non-verbal communication: kinesics (body language), paralinguistics (vocal cues), proxemics (use of space), and chronemics (use of time). It provides examples and details for each category.