This document discusses fundamentals of communication and intercultural communication. It defines communication as a process of sharing messages between people through various channels and contexts. Several models of communication are presented, including Aristotle's model focusing on speaker and message, and the transactional model featuring two-way feedback. Barriers to communication and features of effective communication are also examined. Intercultural communication is defined as communication influenced by different cultures and involves understanding different communication patterns across cultures. The developmental model of intercultural sensitivity outlines six stages of experiencing cultural differences.