The document discusses six barriers to intercultural communication: anxiety, assuming similarities instead of differences, ethnocentrism, stereotypes and prejudice, nonverbal misinterpretations, and language problems. It states that knowledge of intercultural communication allows people to communicate across cultures without prejudices and effectively conduct business anywhere in the world. Some key barriers are language, ethnocentrism, and stereotyping. To overcome these barriers, one needs to understand other languages and cultures without biases or prejudices.